If you have multiple FXO (PSTN) lines into your PBX, it is always nice to be able to route these in-bound calls based on the physical line they arrive upon. Getting this working with DAHDI in Elastix has been driving me up the wall!
This issue has been bugging me for over a week now and I have finally got it to work. I have two trunks connected via FXO modules on a TDM400 card, but I could not get the DID working with them (CLI with BT sorted). But once Asterisk had the call, I could not make Asteriskmake a decision with call based on which number/line the caller called. Not the number the caller is calling from, this is CLI or CID, but the number they dialled to make your line ‘ring’.
Asterisk was either saying there was no route and answering the call to say the number you have called is not in service, or just handling the 2 lines in the same way – i.e. it could not tell them apart. Here I detail my findings so you can process lines automatically.
I had most of the configuration right, but I had to hand edit another configuration file to actually to get the changes made via the web interface actually working. Trying to find this last little bit of information on the forums has been maddening to say the least.
