Want to using Answering Machine Detection in DAHDI Trunk

Asterisk Asterisk Dialplan
1

Hello Fellas!
I’m new here and newbie a lot in asterisk (hahaha).
I buy a board (Wildcard TDM410P) and both incoming and outgoing calls working like a charm, but for my studies i want to use AMD but i cannot find the correct place to put it in dialplan.

That’s the log when i call from my softphone to my cellphone using my DAHDI trunk:

-- Executing [MY-CELLPHONE-NUMBER@from-internal:1] Macro("SIP/1001-00000015", "user-callerid,LIMIT,EXTERNAL,") in new stack
[removed to clear the log]
    -- Executing [s@macro-dialout-trunk:22] Dial("SIP/1001-00000015", "DAHDI/g0/MY-CELLPHONE-NUMBER,300,gM(dialout-custom)") in new stack
    -- Called DAHDI/g0/MY-CELLPHONE-NUMBER
    **-- DAHDI/1-1 answered SIP/1001-00000015**
    -- **Executing [s@macro-dialout-custom:1] NoOp("DAHDI/1-1", "dialout-custom") in new stack**
[at this point i Hungup]
    -- Hanging up on 'DAHDI/1-1'
    -- Hungup 'DAHDI/1-1'
  == Spawn extension (macro-dialout-trunk, s, 22) exited non-zero on 'SIP/1001-00000015' in macro 'dialout-trunk'
  == Spawn extension (from-internal, MY-CELLPHONE-NUMBER, 5) exited non-zero on 'SIP/1001-00000015'
    -- Executing [h@from-internal:1] Hangup("SIP/1001-00000015", "") in new stack
  == Spawn extension (from-internal, h, 1) exited non-zero on 'SIP/1001-00000015'

The text inside ** indicates when DAHDI externs my call i can print some debug, but at this point, my cellphone not ring yet.

  1. How i can configure an Outgoing Dialplan to my DAHDI?
  2. If not possible, how can i detect when other side (in this case my cellphone) answer thye call?

Thanks in advance.

2

AMD would be done in a Dial application subroutine, see the Dial options.

Macros are deprecated.

To best answer answer supervision, use ISDN or ISDN via SIP, not analogue. However Asterisk/DAHDI do support answer supervision by line reversal. This is not enabled be default, because, if the network doesn’t provide it, the call will never be considered answered.

3

Thanks fo the answer.
Can you help me with more info? It’s possible to use my board as ISDN instead of DAHDI?
If yes, how i can do it?
About Subroutine, ok, i try that, but my problem is not about how execute AMD, but when.

Thanks again.

4

ISDN and DAHDI are not mutually exclusive. You cannot use your board for ISDN, and you need a different sort of telephone connection, for ISDN.

You execute it in the subroutine run on the answered channel by Dial.

5

Also, the official policy of the forum is that you should get support for telephony cards from the vendor, but I think that even if you have a genuine Digium product, it is no longer supported.

6

No, is a clone one.
Thanks for your answers my friend, i’ll try your tips.