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TeleDynamics Think Tank

All about FreeSWITCH (and how it compares with Asterisk)

Posted by Daniel Noworatzky on Sep 9, 2020 10:51:00 AM

When researching options for upgrading your telephony network or installing one from scratch, you may have come across FreeSWITCH. This is a freely available open-source application server for real-time voice communications of various types, including voice over IP (VoIP). In this article we examine FreeSWITCH to help you determine if it is right for you, and how it compares with Asterisk.

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Topics: IP PBX, Business Telephone System, VoIP, Unified Communications, codecs

All about Asterisk

Posted by Daniel Noworatzky on Sep 2, 2020 10:48:00 AM

If you have been involved with telephony within the last decade, you will have heard of Asterisk as an open-source alternative to proprietary traditional and IP PBXs. If you’re considering Asterisk as a solution for your business, this article may be useful, as it will clarify what Asterisk is, how it can be implemented, and what kind of support you will need to ensure its viability as a solution.

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Topics: IP PBX, VoIP, Unified Communications, codecs

VoIP troubleshooting resources

Posted by Daniel Noworatzky on Aug 12, 2020 10:45:00 AM

As we celebrate Shark Week this week, we are reminded of the proverbial sharks faced by network engineers in the form of security breaches and technical issues. TeleDynamics has created a collection of resources to help you troubleshoot audio problems, secure your network, protect your telephone system from hackers, analyze voice packets, and more. In this article, we offer a compilation of some of our most popular resources, so you’ll have them handy. For each listing below, click on the blue heading to read the full article.

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Topics: Business Telephone System, VoIP, Network Security, Troubleshooting

Employing VoIP over satellite links

Posted by Daniel Noworatzky on May 6, 2020 10:50:00 AM

One of the most groundbreaking advantages of voice over IP technology is that, with the proper configurations, it is possible to install a voice endpoint anywhere in the world, as long as internet connectivity is available. But what happens if it is unavailable? For such cases, satellite access technology is quickly becoming an economically and technically viable solution.

Employing VoIP services over a satellite link can sometimes be challenging, due to the unique idiosyncrasies of the technology. In this article, we examine satellite internet links and how you can optimize VoIP implementation over satellite.

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Topics: VoIP, WAN technology

SIP trunks vs SIP extensions: Which to choose?

Posted by Daniel Noworatzky on Apr 8, 2020 10:50:00 AM

Telephony solutions come in all shapes and sizes and can be customized to suit the specific needs of each individual business. But with so many choices, it can be confusing for customers to distinguish between the various options available. This is no less the case when it comes to choosing a VoIP service.

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Topics: VoIP, SIP, Network Design, Cloud, WAN technology

Gettin’ jiggy with jitter

Posted by Daniel Noworatzky on Apr 1, 2020 10:49:00 AM

Jitter is one of the most common causes of substandard voice communications over IP networks. This article provides an overview of jitter and how it influences voice applications, as well as methods for resolving it on your networks.

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Topics: QoS, VoIP, Troubleshooting, Network Design, Unified Communications

How to use SNMP to monitor your VoIP network

Posted by Daniel Noworatzky on Mar 4, 2020 10:47:00 AM

Wouldn’t it be great to have superhero X-ray vision that allows you to understand, in a single glance, what is going on with the voice traffic on your network? In fact, it is possible to do so using the Simple Network Management Protocol (SNMP). In this article, we take a look at this protocol and highlight the special features it has up its sleeve to help you with your VoIP monitoring needs.

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Topics: QoS, VoIP, Troubleshooting, Voice Protocols

How to capture voice packets for troubleshooting VoIP

Posted by Daniel Noworatzky on Feb 26, 2020 10:47:00 AM

One of the best methods for troubleshooting problems on the network to pinpoint the cause of poor voice quality or a disruption of VoIP services is to capture voice packets in real time and store them so we can analyze them later. When people call TeleDynamics tech support, we sometimes ask them to show us their packet capture files so we can help identify the issue. In this article, we examine practical methods for capturing voice packets at various locations within the network.

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Topics: VoIP, Troubleshooting

Highlights from ITEXPO

Posted by Daniel Noworatzky on Feb 19, 2020 10:53:00 AM

Couldn't make ITEXPO in Ft. Lauderdale last week? Here's a recap.

This year at ITEXPO we saw a number of new events and happenings. There was a good attendee and exhibitor turnout, despite the fact that all of the Chinese factories and representatives were unable to attend due to the coronavirus. Nonetheless, the products and services from these manufacturers were on full display. The attendees expected nothing less from the #TECHSUPERSHOW! 

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Topics: VoIP, Trends, Network Security, Events, SD-WAN, IoT, Unified Communications

Troubleshooting poor voice quality on VoIP systems

Posted by Daniel Noworatzky on Feb 12, 2020 10:50:00 AM

One of the most challenging problems that you may face as a voice engineer is dealing with poor voice quality on VoIP systems. It’s often much easier to deal with problems where something stops working completely, rather than trying to resolve an intermittent fault such as bad voice quality.

Many things can cause poor voice quality, and the methodology to investigate those causes is not always readily clear. In this article, we’ll share some tips on where to start and what to do, so that you can quickly identify and diagnose the problem.

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Topics: Business Telephone System, VoIP, Troubleshooting

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Welcome to our Think Tank

In this blog you'll read our thoughts on business telephone systems. While a lot has changed in telecom since TeleDynamics was founded in 1981, we remain as committed as ever to delivering the best customer service in the industry.

If you would like elaboration on a specific topic, please let us know in the comments section.

Happy reading and thanks for stopping by!

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