[Asterisk-Users] Having major issues with TDM2400

[steve at daviesfam.org]

On Sun, 1 Jan 2006, Kerry Garrison wrote:

> The goal is to create a user that has a SIP device and a custom ZAP channel
> device, have them both ring until one is answered, basically a ring group.
> But I am using AMP's users and device mode rather than the extensions mode.
> I have this working properly on my office system. However, with the TDM2400
> I cannot have both the zap channel and sip channel ringing at the same time
> and only handing the call to the end device that answers the call. I don't
> understand why this is so difficult for everyone to grasp. Send a call to
> both a custom ZAP device and a sip phone and whoever answers it gets the
> call.
> -Kerry

By default, analogue zap trunks do not have call progress detection.

Therefore, as soon as the number has been dialled out on the trunk, 
Asterisk regards the line as being answered.

Then, the dial command says: "aha, zap/g0/... is answered. Stop ringing 
the other lines".

If you are in a supported country (ie basically north america), 
callprogress=yes in zapata.conf may help.

But essentially what you are trying to do is not supported on analogue 
trunks.

Steve