Hi Eric -
I'm having a problem with my Polycom phones and hoping someone else
has experienced the same thing: Outbound calls are fine, and inbound
calls originating from another SIP phone are fine, but inbound calls
to the Polycom phone from an IAX channel sound like you're talking to
a robot. The person on the Polycom sounds fine to the person on the
IAX channel, however. Inbound calls to our soft phones sound just fine.
Asterisk 1.0.5 on Debian (also had the problem with 1.0 on Fedora) Polycom SoundPoint IP500 SIP Sixtel is the IAX provider.
Check to see what codec is being used for the call. Sean
Default is U-law, but I also switched it to A-law with the exact same results.
I might check out QoS. You can specify TOS tagging on your IAX channels in iax.conf, and the Polycom phones are able to respond to TOS tagging (in ipmid.cfg - or in the web interface under "Core Conf"). Maybe they are are trying to do two mutually exclusive kinds of TOS tagging? You can tell the Polycom phone to just not respond to TOS.
- Noah
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