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What is Automatic Number Identification (ANI)?

In this post, we’ll go over the ANI telephony feature and how businesses use this feature to provide better support and sales.

What Does ANI Mean in Telephony?

In telecommunications, ANI refers to Automatic Number Identification. This phone feature, offered by many cloud telephony and VoIP providers, works in conjunction with call data and is used primarily for billing purposes. Let’s find out how:

What is Automatic Number Identification?

Automatic Number Identification allows the recipient of an incoming call to determine and display the number of the phone that originated the call. In other words, it displays the number of the person dialing or placing the call.

Before ANI, telephone operators manually requested the phone number of the person calling, especially for a toll call. But now, telecom providers can use this service to help users (your business) understand and analyze their call data, volume, and traffic.

Are ANI and Caller ID Services the Same?

This feature is often understood in relation to caller ID services; however, they’re not the same since they utilize different underlying technology.

Automatic Number Identification is the Billing Telephone Number (BTN) used by carriers and assigned by the telco switch. Caller ID, on the other hand, is the display number provided by the caller’s equipment (VoIP or PBX setup) or originating carrier (outbound calling service).

Users can change the outgoing caller ID when making outbound calls. However, one cannot change or block the ANI number.

An image of automatic number identification for international calling.

How is ANI Used in Businesses and Call Centers?

1. Use call detail records for billing purposes:

Automatic Number Identification is especially useful in cases where incoming calls (toll and toll-free) are charged based on the caller’s (your customer’s) number and location. For example, toll-free costs for incoming calls vary depending on where your customer is calling from or where the call originated from.

By identifying where your calls come from, you can better understand your VoIP phone bill. This includes:

  • local, regional, and international call charges
  • how much you pay as a customer
  • and, sometimes, what your VoIP provider owes its own carriers.

ANI systems and reports keep track of your call data. And in some advanced reports, you can even see specific charges for each call. Based on this information, you can then make adjustments to your phone service accordingly.

2. Use call data to improve customer experience:

Such call data can also give you key insights into where your calls come from and, by extension, where your customers are located. Once you’ve analyzed this call data, you can decide how to serve them best.

For instance, say you have a lot of international clientele. With advanced call routing, businesses and call centers can route calls based on a variety of preset rules. So, you can forward calls from specific regions to a call center or support team closer to the destination — all based on the caller ID and area code of the caller.

Or, if you have enough after-hours call traffic, you can outsource those calls to a remote agent or your personal phone. Such time-of-day routing lets you offer 24/7 support.

How United World Telecom Can Help

United World Telecom uses ANI in our system for billing purposes. This enables our customers to see the caller ID of their callers. And our call detail records and billing reports can help you understand call traffic and identify new growth opportunities. Additionally, they also have access to features like location-based routing so they can serve customers wherever they are located.

To learn more, call us today at 1 (877) 898 8646 or chat with us online!

What is G.711? And Why is this VoIP Codec Important?

When setting up a new VoIP phone system, you must equip the right voice codec to ensure reliable and clear call quality. The type of codec you need depends on your provider and phone system.

In this article, we’ll go over the G.711 codec and why it is the preferred codec for VoIP calling.

VoIP Codecs and Why They are Important

VoIP codecs are designed to convert analog voice signals to digital packets (compression) and then reassembled back into audio (decompression) when they arrive at their destination.

In doing so, they establish and maintain VoIP call quality and determine bandwidth use for incoming and outgoing calls. So, to ensure your teams can communicate effectively through your VoIP phone system, you will need to use the right codec — one supported by your provider.

You can adjust these voice codecs depending on what you need, such as better quality, evenly distributed bandwidth, etc.

What is G.711?

G.711 is a commonly used VoIP codec that converts voice signals to digital packets with an output of 64kbit/s.

This codec uses packet loss concealment (PLC) to minimize the effect and impact of packets dropped during transmission. It was established in 1972 as the default pulse code modulation or PCM standard for IP PBX and PSTN networks.

There are two main algorithms for the G.711: The μ-law codec used in North America and Japan and the A-law codec used in the rest of the world. Additionally, G.711 μ-law offers more resolution to higher range signals. And the G.711 A-law offers more quantization at lower signal levels.

Why Choose the G.711 Codec for VoIP?

While there are a few different codecs for VoIP, the G.711 is the most preferred and most commonly offered by VoIP providers. And there’s a good reason for that. Here are a few reasons why the G.711 is one of the best codecs for VoIP calling:

  • Two variants for worldwide usage (μ-law and A-law)
  • High MOS call quality score of 4.2
  • Uncompressed high-quality voice
  • High bandwidth requirement
  • Focus on precise speech transmission
  • Good for LAN and VoIP to PSTN setups
  • Most reliable call quality

The other popular voice codec is the G.729 codec, which uses less bandwidth since it compresses packets. But this also means it sacrifices quality due to compression.

Why Do You Need to Care About Bandwidth for VoIP?

Since VoIP calls travel over the internet, they require a certain amount of bandwidth to efficiently transmit voice data packets back and forth. This means your VoIP calls will compete with other internet traffic. And if you don’t have enough bandwidth or wisely distribute traffic across your network, your call quality will be affected.

So, how much bandwidth do you need? This depends on how many calls you expect to run concurrently and what else your teams use the internet for.

Consider these numbers:

Number of Concurrent Calls Bandwidth Recommended
1 100 Kbps
5 500 Kbps
10 1 Mbps
15 1.5 Mbps
20 20 Mbps

Typically, the bandwidth needed for each concurrent VoIP call resides anywhere from 85-100Kbps. And the G.711 codec consumes 87.2kbps of bandwidth.

Codec Bitrate Bandwidth Usage
G.711 64 Kbps 87.2 Kbps
G.722 48-64 Kbps 80 Kbps
G.723.1 5.3 Kbps 20.8 Kbps
G.726 32 Kbps 55.2 Kbps
G.728 16 Kbps 32 Kbps
G.729 8 Kbps 31.2 Kbps

So, if you have an internet connection of 500kbps, you can theoretically run at least 5 calls simultaneously.

VoIP Codec Supported by United World Telecom

United World Telecom supports the G.711 codec (both μ-law and A-law), and our call quality has an average MOS of 4.3. We can help you set up a VoIP phone system that works best for your communication needs, guaranteeing high call quality and network reliability.

To learn more, call us today at 1 (877) 898 8646 or chat with us online!

Is VoIP Reliable?

Tons of businesses are switching to VoIP for its numerous benefits — from affordability to flexibility. But many new users wonder if VoIP is dependable for business calls, especially since internet-based calling earned a bad reputation in the past.

In this article, we will answer commonly asked questions about voice over IP solutions, including — is VoIP reliable?

Reliability of VoIP

Voice over IP (VoIP) is an internet protocol that converts audio into digital packets and then transmits these packets to the destination. By doing so, VoIP enables users to make and receive calls using the internet.

But many users worry that this is not a dependable solution. This fear stems from a time when these internet-based tools weren’t developed enough, resulting in quality issues.

So, is VoIP reliable? Yes, VoIP can be very reliable, despite concerns surrounding cloud-based calling.

In fact, with how cloud calling has evolved over the years, VoIP phone systems are often preferred over traditional POTS because they offer crystal-clear call quality and high uptime.

But, to enjoy this, you need to take the proper steps to minimize downtime and keep your system running efficiently. This often involves both the provider and the user. Let’s look at the client-side and provider-side factors.

Client-Side Factors

So, what can you do as a user to ensure your VoIP phone system runs smoothly? Here are some key factors to consider:

Bandwidth requirements:

VoIP requires adequate bandwidth to ensure calls travel uninterrupted. This means you need a stable, high-speed internet connection with enough bandwidth dedicated to voice calls. When deciding how much bandwidth you’ll need, consider the following:

  • Number of concurrent calls
  • Number of phone lines
  • Other applications working simultaneously
  • Codecs supported by your provider, etc.

Router optimization:

Similarly, you want to make sure your router is optimized as well. This means investing in a high-quality internet connection, whether WiFi or wired connections. It also means adjusting your router’s settings to prioritize VoIP calling (and voice packets) over other traffic (such as streaming and browsing). You can use quality of service or VoIP QoS to adjust traffic priority.

Backup power and internet sources:

As part of your disaster recovery plan, you will also need backup services in place to get your system up and running during outages or other disasters. Plan to have a backup mobile connection and power sources.

Equipment:

Finally, you must make sure you have the right equipment to make and receive VoIP calls effectively. This covers everything from routers to softphones and headsets.

In most cases, your VoIP provider can make recommendations. But it is a good idea to invest in high-quality, echo-canceling headsets for your agents and use softphones offered by your provider to make calls from your devices. On top of that, ask your provider about the router and internet settings needed to support your VoIP calling needs.

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Provider-Side Factors

You also want to ensure your provider is prepared to offer you quality service with a trustworthy support team.

So, what makes a VoIP provider reliable?

99.999% uptime:

Your provider should supply you with more information that determines the quality of the service your provider will deliver. This must-have information will outline the expected uptime, call quality, troubleshooting assistance, and other essential information pertaining to your service.

Global and local servers:

Most VoIP providers servicing enterprise-level organizations usually have their own VoIP infrastructure with points of presence (PoPs) spread across the world. This ensures calls are distributed reliably, even if one route fails. But some providers work with a vast network of local and regional operators to bring you the same level of service reliability. When choosing a VoIP provider, ask how they route their local and global calls and if any areas are not covered within their network.

Dedicated account management:

Another key factor that determines your VoIP service quality is having a dedicated account manager who understands your business communication needs well and works to ensure you get the best out of your service. Choose a provider who offers an account manager for no extra charge. This way, you know your service is in good hands.

24/7 technical support:

Similarly, you also want a provider with a responsive tech support team in case of emergency situations. Look for a provider with multiple support options such as live chat, 24/7 phone support, email, trouble tickets, troubleshooting guides, etc.

Regular monitoring:

Additionally, your provider should constantly monitor their networks and servers. This is the best way to ensure calls travel accurately and quality remains high. Most providers use a quality monitoring service or software to keep tabs on their voice network. Ask your provider how they monitor quality and how they can guarantee uninterrupted service.

Is VoIP More Reliable than POTS?

Most VoIP newcomers wonder how exactly VoIP is more reliable than POTS. But VoIP is statistically a better choice than PSTN for small to medium-sized businesses.

To better understand why businesses prefer VoIP over landline systems, you must look at their differences.

Here’s a brief overview of PSTN versus VoIP:

  • VoIP is more cost-effective than PSTN. In fact, cloud telephony providers can offer better quality and more features at a lower cost than traditional landlines.
  • You have access to advanced voice calling features with VoIP. PSTN is relatively limited.
  • VoIP use has steadily increased while landline use has steadily decreased over the past two decades – especially in the US.
  • Internet-based calling allows users to use any IP-enabled device to place calls, adding geographic mobility.
  • With redundancy and failover capabilities, you can ensure your VoIP system is up and running, even during a power or internet outage.
  • VoIP infrastructure continues to evolve while PSTN is being phased out.
  • And finally, VoIP offers more flexibility, growth, and scalability than a PSTN setup.

VoIP reliability statistics.

Source: Statista

So, the question remains, do you want to base your communication system on a technology that may not be as functional or reliable 10 years from now?

Source: Bullseye Telecom

When is VoIP the Better Choice?

VoIP can help you increase productivity, reduce costs, communicate effectively, and run your business from anywhere. But how do you decide if your organization can benefit from this switch?

According to our Sales Manager, Luke Genoyer, here is when VoIP is the right choice for a business:

  • Young companies who want to set up a reliable and easy-to-manage phone system can benefit from month-to-month services with no obligation as well as a fast, inexpensive, and easy setup.
  • For businesses that need to scale or plan to grow — in size or global reach — in the next few years, VoIP makes it easy to add and remove users and numbers easily.
  • Businesses that need access to call center data to analyze their call traffic and build a more responsive support team to improve customer experience.
  • Use international calling to establish a local presence around the world with various local and international phone numbers.

How to Choose a Reliable VoIP Service Provider

While there are many VoIP and cloud telephony providers on the market, you want to find one that meets your communication needs and budget. Finding this provider will take some effort and research on your part. Here’s a quick checklist of things to consider when looking for a new VoIP service:

  1. Determine communication needs and budget.
  2. Evaluate features and pricing.
  3. Review inventory and global coverage.
  4. Check uptime and carrier reliability.
  5. Read reviews and customer testimonials.
  6. Try for free, if available.

Get VoIP with United World Telecom

United World Telecom has offered VoIP services to businesses for over 25 years. Our experience in the telecom industry has resulted in strong relationships with Tier-1 carriers around the world. This means we can provide businesses of all sizes with high-quality and reliable VoIP phone services.

Want to learn more about our cloud telephony services? Reach out to our telecom experts and chat with us today!

How to Troubleshoot One-Way Audio on VoIP Calls

Whether you’re a VoIP user or not, you’ve probably experienced one-way audio during a phone call. While VoIP offers businesses many benefits and modern capabilities, it’s normal to experience audio issues periodically. So, in this article, we’ll go over how to troubleshoot one-way audio. This way, you can solve this issue as quickly as it appears.

What is One-Way Audio?

One-way audio happens when the receiver can’t hear you, but you can hear them (or vice versa). It’s a common VoIP issue that impacts your ability to communicate during a call. And one-way audio often leads to a constant exchange of “Hello?” and “Can you hear me now?” – which is frustrating for both parties on the line.

A diagram showing one-way audio on VoIP calls.

Why Does It Occur?

It’s possible for one-way audio to occur during the beginning or middle of an existing call. Disruptions to the audio stream cause this issue and appear for a number of reasons.

The most common causes include:

  • Equipment issues
  • Firewalls / NAT blocking voice data
  • Incompatible codecs
  • Routing misconfiguration

We will look at each of these one-way audio causes and explain how to troubleshoot them.

How to Troubleshoot One-Way Audio: 4 Tips

Although one-way audio is a typical issue among VoIP calls, it is usually easy to diagnose and fix. Let’s look at how to troubleshoot one-way audio.

1. Check Your Equipment

Faulty equipment leads to many VoIP call quality issues, including one-way audio. So, the best way to start troubleshooting one-way audio is to rule out your equipment as the cause.

Equipment Issue Solution

Verify that all your equipment (headset, microphone, and desk phones) is properly connected by checking all cables and selected inputs on your devices. Then, inspect your hardware for any visible damage.

Once you’ve assessed your equipment’s physical condition, test your line. For all setups (softphones, IP phones, and legacy phones), simply initiate a test call and see if you can hear audio on both ends. If you’re using a softphone, you can also use any audio recording software to ensure your inputs are correctly configured.

2. Review Your Router’s Settings

Voice over IP uses packet switching technology to deliver calls through the internet. So, in order for these calls to succeed, voice data must travel from one point to another. This means these data packets must pass through your network’s firewalls – which can block audio packets from transmitting to their destination.

It’s worth noting that Network Address Translation (NAT) acts as a firewall and may also be causing one-way audio.

Firewalls / NAT Blocking Voice Data Solution

To troubleshoot this type of one-way audio issue, make sure the firewall ports are open to your provider’s recommended settings. For United World Telecom users, open ports 10,000 to 60,000. Additionally, whitelist your provider’s IP address in your firewall’s settings.

If that doesn’t work, the problem may lie with NAT. First, evaluate your network. Do you have more than one router supplying NAT? If so, you may be double NATing your traffic – leading to data arriving at the wrong destination. The best way to fix this is to turn off the extra instances of NAT.

After that, if you’re still experiencing one-way audio, try equipping SIP ALG. This network component allows your call data to pass through your firewall’s security checks and NAT rules. However, it’s critical to note that if SIP ALG is implemented incorrectly, it will lead to other problems, which is why most providers recommend leaving it off.

Depending on your setup, you may need to work with your provider to understand the best method of dealing with NAT or SIP ALG-related issues.

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3. Ensure Devices Share Common Codecs

When you place a VoIP call, the two endpoints communicate and select a VoIP codec available to both devices. But if this process is unsuccessful, callers may experience one-way audio – as voice packets cannot be appropriately exchanged.

Incompatible Codec Solution

Make sure both endpoints support a common codec and that your line is set to the proper codec. Contact your provider with questions about correct codec names. For our users, use codec G.711 for all lines and SIP trunks. The United World Telecom network supports the G.711 codec, which provides the best VoIP call quality and uses no compression.

4. Reconfigure Routes

Network routing technology directs your call data from its source to its final destination. While your audio may successfully arrive at the endpoint, this doesn’t guarantee that you’ll always receive voice data in return. For example, If the call path from point A to B has a low-latency connection, but the data from point B to A takes a different path with high latency – you may experience one-way audio. These are both indications that routing misconfiguration may be present.

Routing Misconfiguration Solution

Many telecom professionals suggest troubleshooting this one-way audio issue using a “bottom-up” approach. This approach requires you to assess your IT infrastructure from the physical layer to software components to pinpoint where the misconfiguration is.

If you’re operating on a hosted VoIP service, this issue may lie on your provider’s side. So, work with your VoIP provider to diagnose the misconfiguration and fix the problem.

Solve Call Quality Issues with a Reliable Provider

With the right provider, you can avoid call quality issues altogether. And if they do come up, it’s vital that you solve them quickly. Look for a VoIP provider that understands your business communication needs and offers reliable services.

United World Telecom delivers high-quality hosted communications. We offer 24/7 support and a dedicated account manager for every user. This dedication helps avoid VoIP problems before they begin.

For more troubleshooting help or to learn more about our services, call us at 1 (877) 898 8646 or chat with us online!

What is VLAN? Understanding Virtual Local Area Networks

Here’s a brief overview of how virtual local area networks work and why businesses need this type of network. Learn about the different types of VLAN and what options are available for those interested in VoIP.

What is a Virtual Local Area Network?

A Virtual Local Area Network (VLAN) is a local computer network that breaks up a single switched network into a set of overlaid virtual networks. It groups together subsets that share one LAN while separating network traffic for each group.

The virtual LAN breaks up network traffic so that only the devices within the necessary virtual network receive it. This helps your IT infrastructure avoid network congestion.

A diagram depicting a VLAN flow chart.

What Do You Need to Set Up Virtual Local Networks?

With virtual local area networks, you don’t usually have to buy additional equipment. You can set up a VLAN with most existing switches, access points, and routers.

Virtual LANs operate at the link layer, Layer 2 switch. And they can be used as a single physical link or extended to multiple links by additional Layer 2 switches. You will also need Layer 3 switches for each individual virtual LAN. And you will use Ethernet cables to connect all these components to the router. Depending on your setup, you may even benefit from VLAN trunk links that carry more than one VLAN.

What Does a VLAN Do?

Medium-sized businesses and large enterprises use VLANs to partition, divide, and manage network traffic efficiently. For instance, a company can separate its sales department traffic from its human resources traffic by assigning different virtual networks for each.

Similarly, you can even arrange all voice traffic from deskphones or IP phones to fall within one network and other devices on another network. This allows you to maintain high voice call quality with little-to-no delay or lags.

This way, you reduce network congestion by efficiently managing and distributing network traffic. And this further helps improve network performance on a much larger scale.

A comparison of LAN vs WAN vs VLAN.

Types of VLAN

Now, there are 5 main types of virtual local area networks. Here’s a quick overview of each type:

Default VLAN

Refers to the one network that a device’s ports belong to when switched on – especially with a new switch. The default is VLAN 1 for most switches. It is important to change this for security; however, note that you cannot rename or delete this virtual LAN.

Data VLAN

Divides the network into a group of users and a group of devices. Also known as user VLAN, this is only used for carrying user-generated data.

Voice VLAN

Configured to carry voice traffic, voice VLANs usually have high transmission priority over other types of traffic. This separate virtual local area network ensures VoIP call quality by preserving bandwidth reasonably.

Management VLAN

Equipped to manage infrastructure and access management capabilities of a switch like system monitoring, logging, and so on. This virtual local area network is also used to separate management traffic from other traffic and saves enough bandwidth for management even when general user traffic is high.

Native VLAN

Allocated to an 802.1Q trunk port, which places untagged traffic (traffic not tagged by any virtual local area network) within the native VLAN.

Using VoIP with VLAN

Since virtual LANs segment and separate traffic, VoIP users can benefit from separating data and voice traffic within one network. You can apply VoIP QoS or Quality of Service settings via VLAN tagging to provide special high priority to voice traffic.

Such segmentation also prevents VoIP devices from competing with traffic from other devices. This reduces overall delays and improves VoIP call quality. And you can quickly troubleshoot VoIP issues since that traffic is separated with virtual LANs.

Want to learn more about using VoIP with VLAN? Our tech experts at United World Telecom can help you identify the best VoIP solution for your business. Call us today or chat with us online to learn more! 

Guide to VoIP Codecs and How They Affect Call Quality

Voice over IP (VoIP) allows businesses to communicate with customers near and far with reliable voice quality through the internet. To understand how to get the best voice call quality from your VoIP phone system, you need to pay attention to voice codecs.

So, how do VoIP codecs support VoIP call quality?

In this guide, we will go over:

  • What are VoIP Codecs?
  • What Voice Codecs are used for VoIP?
  • What is the Best Codec for VoIP?

Let’s dive in!

What is a VoIP Codec?

A VoIP codec is a technology that establishes the audio quality, bandwidth, and compression of VoIP calls. The term codec is a portmanteau of Compression and Decompression.

When placing calls with VoIP, the voice needs to be encoded and converted into data packets. During this process, data is compressed to increase transmission speed and improve caller experience with crystal-clear voice.

This is where codecs come in, as they help encode and decode voice.

Why are Codecs Important for Voice over IP?

VoIP codecs convert analog voice signals into digital data packets (compression) and then convert them back to voice at the destination (decompression).

Because of this crucial process, these codecs determine the quality of your VoIP calls. Specifically, they influence latency, packet loss, and other VoIP call issues that may occur when calls travel over the internet.

Users can adjust these voice codecs to meet different needs, such as improving voice quality or reducing bandwidth consumption. You can work with your VoIP provider to understand what codecs they use for their service and how that may impact your communication.

What Codecs are used for VoIP?

Here’s a list of common VoIP codecs:

Codec Bandwidth
(kbit/s – bit rate)
Key Points
G.711 64 kbit/s
  • Focuses on precise speech transmission
  • Two variants: μ-law (US and Japan) and A-law (Europe)
  • 8 kHz sampling frequency
  • Compression ratio 1:2 – 16-bit samples into 8 bits
  • Requires high bandwidth
  • Good for LANs
  • High MOS of 4.2 when conditions are met
  • No licensing fees
  • Best codec for VoIP-PSTN connections
G.722 48 kbit/s
56 kbit/s
64 kbit/s
  • High-definition voice codec
  • 16 kHz sampling frequency
  • Adapts to varying compressions
  • Improves audio quality
  • Lowers latency
  • Better quality and clarity
  • Free
G.723.1 5.3 kbit/s
6.3 kbit/s
  • High compression
  • High-quality audio
  • Low bandwidth requirement
  • Works with dial-up
  • Requires more processor power
G.726 16 kbit/s
24 kbit/s
32 kbit/s
40 kbit/s
  • 8kHz sampling frequency
  • Most used mode – 32 kbit/s
  • Commonly used on international phone trunks
  • Standard codec for DECT wireless phone systems
  • Improved version of G.721 and G.723
G.729 8 kbit/s
  • Excellent bandwidth utilization
  • Acceptable quality
  • Encodes audio in 10 milliseconds-long frames with 80 audio samples
  • High compression rate
  • Supports multiple calls simultaneously
  • Royalty-free
GSM 13 kbit/s
  • Global System for Mobile Communications (GSM)
  • High compression ratio
  • Free
  • Same encoding used in GSM cellphones
  • MOS of 3.7
iLBC 15 kbit/s
  • Internet Low Bit Rate Codec (iLBC)
  • Free
  • Used by many VoIP apps, including open source
  • Tackles packet loss, delay, and jitter
Speex 2.15 kbit/s
44 kbit/s
  • Free software speech codec
  • Most preferred for many VoIP apps and podcasts
  • Uses variable bit rate to reduce bandwidth usage
SILK 6 to 40 kbit/s
  • Developed by Skype
  • Available as open-source freeware
  • Base for the newest codec: Opus

 

What is the Best Codec for VoIP?

While there are a few different voice codecs available, you need to find the VoIP codec that works best for you.

So, which codec is better, G.711 or G.729?

This depends on your business’ bandwidth usage and capabilities, as well as call volumes. But the consensus is that the G.711 seems to offer the most reliable call quality. This codec provides uncompressed high voice quality, but also has high bandwidth usage.

G.729, on the other hand, is the low bandwidth alternative to G.711. However, it may only offer acceptable call quality.

So, it comes down to your specific business circumstances and resources. For these reasons, most VoIP providers accept G.711 and G.729.

Alternatively, G.722 also offers high voice quality, but not all VoIP providers accept this voice codec. So, make sure to ask.

Related: How Much Bandwidth is Needed for VoIP?

learn to set up voip

Choosing the Right Codec for Voice Calls

Since VoIP codecs need to compress and decompress audio traveling through your phone system, you and your provider must agree on the right codec. In other words, the codec you choose needs to support your team’s bandwidth usage as well as work effectively with your provider’s network.

This means you’ll need to speak with your desired provider to understand their requirements and evaluate that alongside your business.

United World Telecom supports the G.711 codec (both μ-law and A-law), and our call quality has an average MOS of 4.3.

Want to see if we’re a good fit for your business? Call us today at 1 (877) 898 8646 or chat with us online!

What is LAN? Understanding Local Area Networks

Here’s a brief overview of how local area networks work and why businesses need this type of network. Learn about the different types of LAN and what options are available for those interested in VoIP.

What is a Local Area Network (LAN)?

A Local Area Network (LAN) is a group of devices sharing a common communications line to a server within a specific geographical area.

This type of network can serve 2-3 users in a home setting or hundreds of users in an office setting. You can set it up so that end nodes — such as computers and printers — can communicate and share information and resources within your IT infrastructure.

A diagram of a LAN network.

To set up LAN networking, you’ll need:

  • Ethernet cables
  • Layer 2 switches
  • Layer 3 switches and routers (for larger network setups)
  • Desired devices

What Does a LAN Do?

At its core, a local area network allows multiple devices to share a single internet connection.

And it helps users connect to different internal servers and websites. You can also connect to other LANs that reside within the same WAN. By doing this, your teams have access to all centralized applications, which is especially useful for storing business-critical data.

And since this network allows you to connect to different servers and devices (printers, computers, etc.), you can use it for sharing resources.

To enable these connections, you will need both Ethernet and WiFi.

LAN vs WAN vs VLAN

A diagram comparing LAN vs WAN vs VLAN.

Local Area Network Architecture

Now, from an architecture point of view, you can have a peer-to-peer LAN or a client-server LAN.

Peer-to-Peer LAN — connects two devices using an Ethernet cable. These devices could be workstations, PCs, PC-to-printer, etc. This type of LAN does not have a central server, so each device is equally responsible for the functioning of the network. Devices share information through wired or wireless connections.

Client-Server LAN — connects multiple endpoints and servers to a LAN switch, which directs communication between these devices. The server manages storage, application and device access, and traffic while the client connects to the server through wired or wireless connections.

Types of LAN

That aside, there are 3 primary LAN types. Let’s look at them in detail:

Wired LANs

As the name suggests, a wired local area network uses “wires” such as Ethernet cables and switches to connect different devices, endpoints, and servers to the network. Wired LAN is the most common type used in most offices, since it is often very reliable and performs with speed. However, it is not the most flexible or portable network, making it hard to access from different locations and devices.

Wireless LANs (WLANs)

Wireless local area networks connect two or more devices using wireless connections (such as radio transmissions) within a limited area like a home, school, or office. WLAN uses the IEEE 802.11 specification to share data between different endpoints. WLANs offer more flexibility and cost savings since they don’t require extensive cabling and enable connectivity to different mobile devices like smartphones, tablets, etc.

Virtual LANs (VLANs)

VLANs break up a single switched network into a set of overlaid virtual networks. These networks have different functions and security networks. Large LANs at the enterprise level require multiple hardware and software to work optimally. If all these devices are connected to one local network, applications will experience network congestion and slow down.

This is where virtual LANs come in handy. It breaks up traffic so that it is only received by devices within a specific VLAN and not the entire network.

Using VoIP with LAN

You can use a LAN to connect your VoIP devices to your telecom provider using Ethernet infrastructure. This way, when you place a VoIP call, audio signals convert to data packets and travel from your internal network to your carrier’s VoIP network. It is then delivered to the destination and converted back to voice.

So, you will need a reliable local area network and a high-quality VoIP provider for VoIP calls to run efficiently.

The route you choose depends on your resources and network capabilities. Our tech experts at United World Telecom can help you identify the best VoIP solution for your business. Call us today or chat with us online to learn more!

How Does VoIP Connect to PSTN?

If your business uses a VoIP phone system, but your customers or partners still use landline phones – how do you communicate with them? In this article, we will discuss how VoIP to PSTN calls connect and methods for establishing this connection. But first, let’s quickly recap the difference between these networks.

The Basics of VoIP to PSTN

The Public Switched Telephone Network (PSTN) uses circuit switching technology to transmit calls over physical phone lines and cables. And a central office (also known as a local or switching exchange) connects callers to a PSTN line and routes calls to their appropriate destination.

This process used to be done by hand, and calls needed a dedicated communication channel or circuit for the duration of the call. Now, the PSTN is mostly digital and uses automatic electronic switching – meaning multiple calls can share the same wire. But even though the PSTN has been digitized, it still uses physical cables to deliver calls internationally. This means more expenses related to maintenance and equipment for your business.

Voice Over Internet Protocol (VoIP) uses packet-switching technology that transmits calls digitally through the internet. This technology converts voice data into digital packets and then delivers it to the recipient across an IP network.

Since these packets look for the most efficient routes, they may travel differently. Once these packets reach their destination, they reassemble into audio for a seamless transmission. Because this system uses the internet instead of physical lines, it is overall more affordable and increases your system’s functionality.

How Do VoIP and PSTN Networks Interact?

It’s clear that VoIP and PSTN operate differently. But for VoIP calls to reach traditional telephones, they must travel over the PSTN. So, how do these networks connect?

A diagram showing how VoIP connects to the PSTN.

When you place a VoIP call to a PSTN line, the process begins the same as a VoIP to VoIP call. Your analog voice is converted into digital data packets. These packets travel to your VoIP provider and their carriers using the internet as a pathway. Alternatively, the packets may pass through your own media gateway if you establish your own VoIP to PSTN connection. More on that later.

At this point, either your provider or your own infrastructure (VoIP gateway, PBX, soft-switch) converts the voice data into the proper voice codec and format, if necessary. And this is also when the address translation process occurs. During this process, the IP address attached to the voice packets is rewritten into the receiver’s phone number. This way, your voice data can successfully travel over the PSTN and route to your desired destination.

From there, your call routes to the public switch telephone network, where it arrives at a central office. This switching exchange connects subscribers to a PSTN line. Once your call arrives here, the exchange recognizes the landline phone number and sends it to the precise location.

Note that while this process sounds drawn-out and complex, it happens so fast that your call experience is not disrupted.

Methods for Establishing a VoIP to PSTN Connection

Now, let’s look at the main two methods for connecting your business VoIP system to the PSTN:

Do It Yourself

If businesses want to establish a VoIP to PTSN connection, they can do this themselves. Whether you choose to implement your infrastructure on-premise or in the cloud, this method requires you to purchase the necessary hardware and software, including:

  • VoIP architecture
  • Telecom provider
  • VoIP gateway, PBX, or softswitch
  • SIP Trunks and so on.

On top of that, you’ll also need to invest in expert staff who specialize in telephony, VoIP, and computer networking. And your infrastructure will also need routine maintenance and upgrades – adding to the overall expense of this option. So, while it is possible to DIY a VoIP to PSTN connection, it is overall more costly and complicated than the alternative.

Get a VoIP Provider

Instead of dealing with the hassle and expense associated with configuring your own system, you can get a hosted VoIP provider. With this option, the provider handles the VoIP to PSTN connection on behalf of your business, saving you time, money, and frustration. Start by simply signing up with a reliable provider, logging in to your account, and making calls. There’s no additional equipment or setup required.

learn to set up voip

Importance of Including PSTN Within Your VoIP Infrastructure

Although VoIP is a popular communication method, fixed-lines and plain old telephone services are still in use today. This means your business may have to make outbound calls to landline numbers in order to reach certain customers, clients, prospects, suppliers, and so on.

VoIP calls made to other VoIP networks avoid the PSTN altogether. However, VoIP calls made to fixed-lines and POTS must travel over the PSTN. In other words, if you place a call to a residential or business landline, you’ll use the PSTN to establish a connection.

With a VoIP to PSTN connection, you’ll be able to expand your reach, target a broader consumer base, and grow globally.

Start with a Reliable VoIP Provider

Although VoIP networks are gradually replacing PSTN, it’s important to keep this connection in place until PSTN is entirely phased out. Otherwise, you’ll lose out on potential business opportunities and risk losing customers.

Placing VoIP calls to landline users is easy with the right provider. Over the course of 25 years, United World Telecom has established relationships with Tier-1 carriers and other telecom partners to deliver VoIP calls to the PSTN worldwide. Our service offers access to advanced communication features, a dedicated account manager, a 99.999% uptime guarantee, quick activation times, and 24/7 global customer support.

Ready to make VoIP to PSTN calls without any hassle? Speak with our dedicated telecom experts at +1 (561) 276-7156, or chat with us online today!

What is IT Infrastructure?

Technology is the backbone of the modern business landscape, supporting many levels of a business’ operations. And with a properly implemented IT infrastructure, your company can improve business functions, meet goals, and even increase revenue.

In this article, we’ll discuss IT infrastructure in detail, including:

But before we get into it, let’s review its importance.

Defining IT Infrastructure and Its Importance

IT infrastructure, or information technology infrastructure, refers to all the necessary components that businesses use to manage their internal operations or deliver external services to customers.

So, who manages IT infrastructure?

Managing business IT systems requires a specific set of skills. And these skills are often understood by technicians, project managers, directors, and others in the IT manager career path. These individuals understand how to set up different components and factor in the budget and business goals.

An optimized and well-managed IT infrastructure can help your business gain a competitive edge in the marketplace. And it can even determine if your business is successful or not. It also allows you:

  • Gather data in real-time
  • Improve communication
  • Boost productivity
  • Provide uninterrupted service to customers
  • Meet performance goals
  • Increase customer satisfaction
  • Automate processes and much more.

On the other hand, an insufficient IT infrastructure integration can cause performance, connectivity, and security issues. This is why it pays to consider your business’ technology setup and how you can use it to improve your business functions.

Components of an IT Infrastructure

There are many ways to deploy and arrange the IT infrastructure components to meet your needs. To better understand what this entails, we’ll take a closer look at 5 standard components and examples.

A diagram mapping out the IT infrastructure ecosystem.

1. Hardware

Hardware signifies all the physical equipment and devices that form your tangible infrastructure and support the basic functioning of your systems.

  • Cabling and wires
  • Desktop and laptop computers
  • Desk phones
  • Smartphones and tablets
  • Internet hubs and routers
  • Servers
  • Data centers and so on.

2. Facilities

This component could also fall under the hardware category, as it is another tangible element of IT infrastructure. The facility component is the physical building itself that houses and maintains your equipment.

  • Dedicated rooms
  • Cooling systems (AC units, fans, etc.)
  • Cabling within the building (FiberOptic or CAT 5/6/7)
  • Power sources.

3. Network

The network element is vital for communication and connectivity between all components. It also consists of security methods like firewalls to keep your data safe.

  • Switches
  • Firewalls
  • Internet hubs and routers
  • Servers
  • Data centers.

4. Software

Software refers to all the applications and programs that businesses use to organize, control, and maintain their internal and external processes. From systems like macOS Sonoma to project management tools, businesses rely on a variety of software to streamline their operations

5. Communication Solutions

Communication is critical to your business’ operation and success. You need a communication stack — with both hardware and software — to connect with vendors, suppliers, trade links, and (most importantly) customers and prospects.

  • IP-PBX
  • Desk phones
  • Softphones or web phones
  • VoIP architecture and phone service
  • Voice API
  • Business phone numbers
  • SIP Trunking.

Types of IT infrastructure: Traditional vs Cloud-Based

It’s important to note that there are different types of IT infrastructure. The primary two types are traditional and cloud-based frameworks. Let’s break these down.

Traditional Infrastructure

With a traditional setup, your business owns, controls, and maintains all the elements mentioned above. Typically, a traditional IT infrastructure resides at one location – usually on your business’ premises. This means your business has full authority over your data environment. So, you determine how you’ll manage the network, devices, storage, security threats, and so on.

The main drawback to this type of setup is cost. Since a traditional IT infrastructure consists mainly of hardware and software, it requires a lot of free space, power, and money to maintain. As your business grows, you’ll need to buy more devices to keep up with all the data you collect. And, you’ll have to hire more staff like system administrators to manage, monitor, and upgrade the system.

Pros Cons
  • Full control over business data, software, and IT management
  • More secure than hosted solutions
  • Needs a lot of free space
  • More expensive to install and maintain
  • Complicated to set up
  • Requires routine maintenance and monitoring
  • Not easily scalable

Cloud-Based Infrastructure

Instead of purchasing physical hardware for an in-house setup, you can rent or outsource your IT infrastructure via a cloud computing provider.

In other words, the provider hosts and maintains the IT components (like servers, data storage, applications, etc.) on their premises. Then, the provider delivers these services to your business using the internet.

This means you can access your cloud-based IT infrastructure from any IP-enabled device or location. And you don’t have to deal with the hassle or expense of maintaining, monitoring, and upgrading the infrastructure.

Over the last couple of years, more and more businesses are choosing to migrate to a cloud-based infrastructure. This is because of its affordability, flexibility, scalability, and automation capabilities.

Pros Cons
  • Save money on expensive equipment, daily IT management, upgrades, etc.
  • Doesn’t require complicated setup or installation
  • Easily scale up or down as needed
  • No limits on storage space
  • Accessible from any device or location
  • Provider handles routine maintenance, monitoring, security, and upgrades
  • Subject to attacks and malware
  • Less control over IT management

What Does an Optimal IT Infrastructure Look Like?

As mentioned earlier, an IT infrastructure that isn’t fully optimized or well-managed can lead to connectivity, performance, and security issues. So, you may be wondering what an ideal infrastructure looks like.

Typically, an optimal IT infrastructure includes the following:

1. High-availability infrastructure – offers your business high uptime with little-to-no downtime. You can reduce system outages as well as interruptions to service and business continuity.

2. Bandwidth management – allows you to prioritize internet traffic as needed, using Quality of Service (QoS) settings to provide specific traffic (like VoIP calls) with a certain amount of bandwidth.

3. High-performance storage systems – enable you to save, backup, and recover (if necessary) large amounts of data.

4. Security measures – help protect your business from breaches, data leaks, and attacks like Denial of Service (DoS). This capability should also include systems that manage who can access information and resources as well as have password security and other security measures in place.

5. Low-latency networks – produce minimal delays in data processing, allowing for real-time data availability and access.

6. Failover and Disaster Recovery Plans – keep your business operating or help it recover quickly in the event of an outage, attack, or other crises.

How you deploy IT infrastructure depends on your business size, industry, goals, and specific needs. But at a basic level, these 6 elements help create a fully optimized infrastructure.

An image of IT infrastructure management.

Best Practices for IT Infrastructure Management

IT infrastructure management is complex and multidimensional. It covers everything from implementation to continuous maintenance. And this is true not only for the IT hardware but all IT components, including the facility and software.

With that being said, IT infrastructure management is, well, manageable – especially with industry knowledge and best practices in mind. So, we spoke with our team to bring you expert advice and best practices.

1. Thorough Documentation and Organization is Key

A good deal of IT industry leaders and businesses think documentation is lacking in most IT departments.

Gregory Porras, Senior VoIP Engineer at United World Telecom, shares this sentiment and suggests cataloging equipment by recording the serial number, make, model, login information, and its function in your organization. He also recommends labeling all your equipment (including things like cables) with essential information, such as what it does and where it goes.

This practice is great for onboarding new team members and getting them up to speed quickly on your business’ specific IT infrastructure. It’s also helpful for troubleshooting, routine maintenance, and keeping track of your equipment’s lifespan.

2. Make Sure Your Infrastructure Supports Your Vision

When building infrastructure, it’s important to consider what services you envision using on a daily basis. Alain Rodriguez, Tech Support Manager, says: Make sure your IT infrastructure can support the sophisticated solutions you want.

For instance, VoIP and SIP trunking require a consistent internet connection to function properly. So, for these solutions to work effectively and deliver the best call quality, you have to evaluate your IT infrastructure by asking:

  • Do you have a sufficient amount of bandwidth to power these solutions?
  • Is your IP address static or dynamic?
  • How is your team organized (are they located at one office, fully remote, or spread across multiple global locations?)
  • Does your team have standardized equipment? Or all different types of devices and applications? And do all team members have access to the same quality level of internet?
  • Are you using standard PBX solutions, an open-source one, or a softphone to complete business tasks?

All of these questions and factors will help you set up a VoIP environment that works best with your current setup and infrastructure.

3. Invest in the Right Technology and Consider the Cloud

After evaluating what solutions your IT infrastructure can handle, invest in the right technology (equipment and services) for your business’ specific needs. There is no “one size fits all” when purchasing tech for your business. In fact, it will vary depending on your company’s size, goals, budget, resources, and day-to-day processes.

Since technology is constantly progressing, you want to make sure you’re not using outdated applications and devices. By using the latest technology, you can easily keep up with your competitors, increase your productivity, and deliver optimum services to customers.

If you opt for on-premise solutions, frequent upgrades and updates are more involved and expensive. As a result, more and more businesses are moving to the cloud.

With cloud-based services, upgrades are as simple as clicking “update” on your device or, at times, occur automatically. Additionally, your remote and international teams can access cloud-based solutions from any location or device – making it easy to connect your widespread teams.

4. Build Your Infrastructure’s Geo-Redundancy with Backup Practices

Your business may experience prolonged system downtime during an outage or a crisis – especially if you don’t prepare.

Gregory Porras suggests backing up your IT infrastructure as soon as your system is online. He says you can build your geo-redundancy by spreading your servers across multiple locations or data centers. And adds that you should consider storing applications and equipment on-site and rotating them offsite.

Doing this can help with load-balancing so that no one server bears the burden of all your network traffic. This means if one server fails, your backups take on the traffic and distribute it – so you maintain your business continuity in case of a crisis.

Greg also recommends making sure your backups are always online and regularly testing them for potential emergency scenarios. This helps ensure that the backup will work when you need it most and helps you practice for emergency situations.

5. Develop IT Management Policies and Regularly Update Them

Policies help your business define clear guidelines for integrating, using, and managing your IT infrastructure. This includes policies on IT security, responsible use of data, business continuity, and more. With strong policies in place, your business can navigate crisis situations and unprecedented events with consistency, effectiveness, and efficiency.

As your IT environment grows, it’s important to update your IT policies to reflect these changes. This way, your guidelines are always accurate and ready to go when you need to reference them.

Here’s examples of some IT policies you should consider implementing:

  • Scheduled downtime and system maintenance policies
  • Risk assessment or vulnerability management policies
  • Bring Your Own Device (BYOD) policies
  • Network and VoIP security policies

Dependable Communication Solutions for your IT Infrastructure

With a well-organized and maintained IT infrastructure, your business can limit downtime, offer better customer service, boost productivity, and maximize your revenue. To get started, you need top-tier components – including a high-quality communication solution.

United World Telecom provides enterprise-grade cloud communication services from more than 160 countries worldwide. We’ve established long-term relationships with reliable Tier-1 carriers across the globe to deliver users with high-quality voice services.

To learn more about our reliable service and if we are the right communication provider for you, speak with our dedicated telecom experts at +1 (561) 276-7156 or chat with us online today!