lmyronuk

When ExpressTalk/USB phone is installed on the same machine as Axon, there seems to be a conflict over port 8000--they both want to use it for audio? I found that I could hear/be heard within our virtual pbx from the USB phone but on calls outside I could be heard but not hear the other party. Changing the RTP port in Network Settings of ExpressTalk to 9000 has fixed the problem. This step was not necessary when installing the same USB phone model on a different LAN node than the one on which Axon is running.

He helps those who help themselves... I used Ethereal to sniff the packets going between Axon and the GXP2000. No matter what the setting was that got entered into the local SIP port for the GXP200, it would send its SIP packets to port 5060. Axon had been configured to listen on 5062 and hence no registration was being made. As soon as I changed Axon back to port 5060 the GXP200 registered immediately. I note that in the advanced settings page of the GXP2000's web interface there is a field to specify the RTP port. The SIP port is specified on each of the four separate account pages, and these are logged in Axon as entered. Apparently, these Grandstream phones only send to SIP port 5060.

I seem to be having the same problem with my Grandstream GXP2000. Nothing (including changing the GXP2k's local SIP port to 5070 as per the last post) seems to be able to coax it to register with Axon. Any of you gurus out there have suggestions for what to do next?