I wonder if there's anyone out there successfully using the Speex codec with IAX2, and if so, if you could kindly point me to a working configuration that would use that codec on that channel type. A sort of related question would be how one could tell just which codecs to expect to be used on which channel. I have googled the archives and looked through the documentation, but what appears to be the thing to do (in iax.conf: "disallow=all; allow=SPEEX", at both endpoints) does not seem to do the job. Thanks. B.