Tuesday, February 22, 2011

VoIP Bandwidth Calculator

I recently ran into a cable TV executive who reported some issues with a recent business hosted IP telephony installation. The issue was the sizing of the upstream bandwidth. Apparently, the issue was that the hosted IP telephony system also was interacting with some premises gear that essentially required four call paths to set up a session.

Here's a table to estimate the bandwidth required to support a given number of lines (voice paths) across a broadband connection, using a variety of codecs, and assuming you do not have the aforementioned problem.

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