On Wed, Jan 20, 2010 at 6:19 PM, Michael <michael_zurich at yahoo.com> wrote: > I use pjsip client with latest Aastra PBX. Codec is ALaw. Aastra is connected to ISDN PRI. Calls from and to ISDN are working fine. When calling from an internal Aastra Systemtelephone to the pjsip client, I do not hear the caller. Statistics says nothing decoded. When using phoner.de as client it works. > You can follow this checklist: http://trac.pjsip.org/repos/wiki/audio-problem-local-no-audio
