History: Asterisk SMG ConfigurationSource of version: 14 (current)!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: ~pp~exten => _X.,n,Dial(WOOMERA/g1/${EXTEN}|60|o,30)~/pp~ where g1 specifies trunk group 1. **The Nature of Address Indicator of the Called Party Address of the IAM can be optionally filled using a ((Structured Trunk Group Value)). **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 [http://www.voip-info.org/wiki/view/Asterisk+cmd+SetCallerPres|SetCallerPres]. ))SetCallerPres(( uses symbolic constants whose values are composed of a Presentation value and a Screening value. * ((Call Redirection)) Here is an [http://sangoma.editme.com/wanpipe-linux-asterisk-ss7-configure#ast_extensions|example] of an Asterisk/SMG extensions.conf file. |
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