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TeleDynamics Think Tank

How to resolve one-way or no-way audio on VoIP calls

Posted by Daniel Noworatzky on Jul 4, 2018 3:13:00 PM

Unlike conventional telephony infrastructure, which was developed and tailored to be used exclusively for voice, today’s telecom networks accommodate a multitude of different data traffic types, of which VoIP is just one of many. Because of this, it can be challenging to adapt a network to accommodate voice.

One of the most common challenges involves a technology called Network Address Translation (NAT), which for data networks has been a godsend, but if not configured carefully, could cause problems for voice applications. In particular, NAT is a common cause of one-way and no-way audio on VoIP calls.

In this article, we dive into how NAT can impair voice sessions, cite some common symptoms that indicate NAT may be at the root of your call audio problems, and address how to resolve the issues. 

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Topics: VoIP, SIP, Troubleshooting, Routers

Spotlight on ADTRAN

Posted by Daniel Noworatzky on May 30, 2018 3:48:00 PM


This week we focus on ADTRAN, a global provider of telecommunications networking equipment and internetworking products that has stood the test of time in a volatile and dynamic market by maintaining a solid level of market innovation and reliability. In this article we review ADTRAN’s network switches, routers and media gateways.

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Topics: VoIP, Routers, Gateway, Switches

How to hack-proof your VoIP network

Posted by Daniel Noworatzky on Jan 24, 2018 3:49:00 PM

One of the most common matters we discuss with customers on our support calls is network security – specifically, how to lock down SIP Trunks, IP PBXs, SIP phones, and routers from hacking. Here we review different ways hackers can break into your voice network and the steps you can take to secure your system.

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Topics: SIP Phones, IP PBX, SIP, Network Security, Routers

Get high throughput without high cost using Peplink’s Balance Router

Posted by Daniel Noworatzky on Feb 8, 2017 1:55:00 PM

Product review

There are several ISPs (internet service providers) that can provide your business with high- and super-high speed internet access. These technologies include Metro Ethernet and Fiber to the Premises (FTTP) and offer speeds from several Mbps to 1 Gbps and beyond – but with a hefty price tag.  

An alternative is the bonding of multiple ADSL/VDSL or cable lines to take advantage of the aggregate bandwidth of these connections while paying a comparably miniscule monthly cost. All that’s needed is a load balancing WAN router like Peplink’s Pepwave Balance 20 Dual-WAN Router.

Designed for small office and branch office use, not only does the Balance 20 router perform link bonding and load balancing, but it also offers an impressive array of additional features.

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Topics: Business Continuity, Routers

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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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