On 3/16/06, Leif Madsen <[EMAIL PROTECTED]> wrote: > I need to take 4x T1's into an Asterisk box (92B + 4D) and transcode > them from G.711 (ulaw) to G.729, terminating via SIP. I've been at VON > this week in SJ, talking to the Digium guys, and opinions seem to > hover around a box with 2x Intel Xeon CPUs running at 3.0GHz or > higher.
Just as some added information, which doesn't really affect the original question, but will help you visualize the topology I'm dealing with. The box will be sitting at a customers side and acting as a "transcoding gateway". The customer will be the one filling the physical T1 ports with their equipment, where the streams will be transcoded by Asterisk to G.729, then sent via SIP to my gateway servers where I will terminate his traffic to the PSTN. Customer -- [4x T1 (G.711)] --> Asterisk -- [SIP (G.729)] --> Internet --> GW --> PSTN Hope that helps clear up any confusion as to how this is being implemented. This also allows me to bring up another part of the scenario -- have I calculated correctly that with all protocol overhead (SIP, RTP, UDP, IP + codec media) that I'm looking at around 2.12 Mbps of databit rate for all 92 simultaneous G.729 calls? -- Leif Madsen. http://www.leifmadsen.com http://www.oreilly.com/catalog/asterisk
