Asterisk SMG Configuration

extensions.conf


  • Trunk groups are a key concept for coordinating Asterisk and SMG. Trunk groups are numbered 1..n. The trunk group is specified in the the Asterisk dialplan with a "gN" notation. For example:
    exten => _X.,n,Dial(WOOMERA/g1/${EXTEN}|60|o,30)
    where g1 specifies trunk group 1.


    • Inbound call context is defined according to the trunk group the call belongs to. Calls in trunk group N arrive in Asterisk in the context of sangomaN . For example, inbound calls on trunk group 1 are in the sangoma1 context.

  • NADI prefix insertion and removal: if the NADI In Prefix feature is used, then for all outbound chan_woomera calls must have a NADI value prepended to the calling and called numbers. All inbound calls must have the NADI prefix value removed.

  • Calling Line Identification - Presentation and Restriction values passed from ISUP to Asterisk for inbound calls, and from Asterisk to ISUP for outbound calls. Information on establishing the values for outbound calls can be found in the description of the Asterisk dialplan function SetCallerPres. SetCallerPres uses symbolic constants whose values are composed of a Presentation value and a Screening value.


Here is an example of an Asterisk/SMG extensions.conf file.

Created by: mike last modification: Thursday 14 of June, 2007 [04:49:21 UTC] by mike

The original document is available at http://www.ss7box.com/tiki-index.php?page=Asterisk%20SMG%20Configuration