no ringback tone dialling external numbers

[andymars]

when placing a call from a grandstream gxp 2000 handset to an external number the line doesn't appear to ring:

there is a dial tone when the handset is picked up,
a number is dialled,
silence until the external number answers the call (no ringback tone)

this is probably handset specific since the softphone appears to work ok, can anyone suggest why there's no ringing?
(I've tried PBX delivers audio for the extension but this has no effect).

 

[andymars]

hi kyle,

This does not occur when using the softphone, only when using the 3CX SIP Proxy Tunnel. It's odd because I thought the same tunnel code would be present in both the 3cxphone and the software. I have upgraded to the latest version of all available software (PBX, tunnel, 3cxphone).

Grandstream firmware is 1.2.2.14, but this also occurs on a linksys/sipura handset. I have logged a support issue with VoipOn (who are speaking to 3cx dev apparently) and have already confirmed with Grandstream that the phone is not at fault. I have verified this by connecting the phone to the voip provider directly and the ringback tone is there.

Has anyone else or 3cx been able to test and verify this?

 

[William400]

Hi

Thanks for your time.

We have reproduced this internally and have logged a bug in our tracking system.

We have to have an update included in upcoming versions.

 

[andymars]

brilliant, thanks for verifying, i look forward to the next release
btw 3cx has been excellent, despite my lack of knowledge it's been really easy to setup and use so thanks

 

[andymars]

hi, any news on a release containing this fix?
thanks

 

[andymars]

hi, any chance of a patch for this, or is there a release date soon?

 

[tbamuelos]

Any solution to this?

I have that same problem here:

http://www.3cx.com/forums/no-ringtone-silence-until-recipient-answers-19266.html

 

[andymars]

this particular issue was resolved in v9 release. I also had to update the Grandstream GXP2000 phone to the latest firmware.