I have a 480i CT at my house which registers with my office trixbox. When a call is made from the phone or a call is directed to that ext. it rings once and hangs up.
previous to this i was able to call to this ext but get one way audio and when dialing out i got one way audio
When i take home a grandstream gxp2000 i have no audio issues
 
Member Since:
2007-06-26