I’m running the most recent Asterisk 1.2 and am trying to improve call quality. I’ve changed to a SIP provider which has a much better traceroute than my old one but it seems to have not helped much. I have a full T1 and no more than 4 calls at once. I have QoS in place. The server runs Slackware 12.0. The CPU is an AMD Sempron™ Processor 2800+ and has 1GB RAM. Codec is g729 and incoming calls are recorded using MixMonitor. Employees are using a combination of Xlite, Linksys/SPA942 and Grandstream ATA. All seem to have the intermittent “choppiness” call quality problem.
I suspect that running other services (squid in particular) on the Asterisk box may be contributing to the quality issues. If that’s a possibility then I could easily move Asterisk to a dedicated box. Before I bother trying however, I thought I’d ask what people here think of my theory. Any thoughts would be appreciated.