SIP Trunking Bandwidth: Too Much or Not Enough?


Webtorials is a comprehensive resource centre featuring industry-sponsored whitepapers, podcasts and guided discussions on IT issues, supplemented by regular contributions from staff writers. This article on calculating bandwidth needs for SIP trunking by senior contributing editor Gary Audin is typical of the thought leadership the Webtorials crew bring to their work. Audin leads readers through a very tech-centric but concise guide to determining trunk capacity for incoming calls, a process that involves calculating Grade of Service, Erlang loads (Audin provides a helpful Erlang B calculator link if your math is rusty) and VoIP bandwidth. Audin’s answers in the comments section provide even more specs, should you need them.

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