Running IncrediblePBX13-13 Scientific on an Intel NUC, one callcentric trunk with 5 DIDs. I'm seeing an intermittent issue with voicemail.
Sometimes a call will come in, the endpoint (Grandstream GXP2160) rings & displays the incoming call, and after the default ringtime the endpoint display goes to normal and the call goes to voicemail - as expected.
Other times, after the default ringtime, the endpoint display will go normal for a moment, then starts ringing again and redisplays the call. This repeats indefinitely until the caller hangs up. The call never goes to voicemail.
When this happens, the CDR shows it as a succession of separate 15 second "no answer" calls. The callcentric CDR shows it as separate calls too.
Any ideas?
Sometimes a call will come in, the endpoint (Grandstream GXP2160) rings & displays the incoming call, and after the default ringtime the endpoint display goes to normal and the call goes to voicemail - as expected.
Other times, after the default ringtime, the endpoint display will go normal for a moment, then starts ringing again and redisplays the call. This repeats indefinitely until the caller hangs up. The call never goes to voicemail.
When this happens, the CDR shows it as a succession of separate 15 second "no answer" calls. The callcentric CDR shows it as separate calls too.
Any ideas?