[asterisk-r2] Elastix 2 with Sangoma A104, A101 cards Axtel and Telmex trunks not opening called party voicemail

[Raúl Torres Duque Vázquez Aldana]

Hello all,

 

This is a system is in Mexico mounted on an HP ML-110 G6 server with Elastix
2, Asterisk 1.6, wanpipe 3.5.14, one A104 an one 101A Sangoma E1 cards.

There are 3 trunks connected to Axtel on the 104A

One tunk is connected to a Panasonic KXTD600 on the 104A

One Telmex trunk connected to the 101A

 

The system works fine in general but we have an issue that is wasting a lot
of agent time in this particular call center.

All calls placed to Telmex numbers with voicemail activated (which
basically, all telmex numbers have voicemail activated nowadays) present
this behavior when the call is answered by the Telmex voicemail:

 

On Axtel trunks, when the voicemail is supposed to play the initial greeting
(wheter it has been customized or it has the Telmex prompt), the call
appears as connected but with no audio. The call is connected alright
because if you press any button, you will hear voicemail options (Telmex
prompts) but the fact that the agent doesn’t hear the opening greeting has
been disturbing to their operation.

 

On the Telmex trunk is even worse, the phone rings normally up to the time
when the voicemail should open and then you get the “all the circuits are
busy” prompt from Asterisk and then the line is disconnected.

 

I’ve tried different wanpipe and dahdi configurations but (when I don’t
break it) the result is always the same, so any help would be greatly
appreciated.

 

Regards,

 

Raul

 

 

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