On Thu, 2 Sep 2004, Michael George wrote:
> I've a question about the bandwidth consumed by IAX2/GSM. > > According to the wiki page, the GSM codec should run about 13 kilo-bits/sec > for a voice encoding. > > However, watching gkrellm when I initiate a call to Digium, it looks like the > channel is taking a consistent 5-6 kilo-bytes/sec. That's a lot more > bandwidth than it should take. Is there perhaps a setting I have wrong > somethere in the conf files? > > I have: > bandwidth=low > disallow=all > allow=gsm > > so it's surely using GSM and it should be gearing itself for a low-bandwidth > situation. The codec itself takes 13kbps, but by the time the codec frames are wrapped in all the IP overhead it is a lot more. If you are sending several concurrent calls to the same place, you can reduce the overhead by using trunking - which shares the IP overhead over the concurrent calls. Steve _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
