asterisk users - Nov 2005 - Detect alternate line in Broadvoice inbound context

I have a single Broadvoice account with more than one number.  I am 
trying to distinguish between the numbers on an inbound call.  I have 
already tried using different incoming extensions that match each number 
but it always defaults to the primary.  Someone earlier mentioned 
SIPGetHeader as a possible solution but I'm not sure how that would 
work.  The only field that might possibly contain the distinctive number 
that I can tell is "list_route" but I have never used SIPGetHeader and
don't know if it even makes sense in this case.

Does anyone have a solution for this?  I also tried DNID with no luck.

MARK.

There was a patch for chan_sip a while back that broke out what
context a call rang into based on the distinctive ring information
that was sent by the peer. This is what I use to distinguish different
dialed numbers from them.

On 11/21/05, Mark Hulber <asterisk-admin@hulber.com>
wrote:
> I have a single Broadvoice account with more than one number.  I am
> trying to distinguish between the numbers on an inbound call.  I have
> already tried using different incoming extensions that match each number
> but it always defaults to the primary.  Someone earlier mentioned
> SIPGetHeader as a possible solution but I'm not sure how that would
> work.  The only field that might possibly contain the distinctive number
> that I can tell is "list_route" but I have never used
SIPGetHeader and
> don't know if it even makes sense in this case.
>
> Does anyone have a solution for this?  I also tried DNID with no luck.
>
> MARK.
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Mark,

1. Make sure that SIPGetHeader application is registered
CLI> show application SIPGetHeader
if it is registered you'll get
  -= Info about application 'SIPGetHeader' =-
[Synopsis]
Get a SIP header from an incoming call
[Description]
  SIPGetHeader(var=headername):
Sets a channel variable to the content of a SIP header
Skips to priority+101 if header does not exist
Otherwise returns 0
If not,
Your application(s) is (are) not registered

If the application is not registered, I can't recommend anything for
you, I had an Asterisk system with ver 1.0 (no SIPGetHeader) and I
tried to patch it with any of the following with no luck:
http://bugs.digium.com/bug_view_page.php?bug_id=0002838 
http://bugs.digium.com/view.php?id=2924

If you have it registered, here is a sample of my setup:
[bvdr]
exten => s,1,Answer 
exten => s,2,DigitTimeout(5) 
exten => s,3,ResponseTimeout(10) 
exten => s,4,SIPGetHeader(Var_Alert=Alert-Info) 
exten => s,5,GotoIf($["${Var_Alert}"
"<http://127.0.0.1/Bellcore-dr3>"]?ext-local,320,1)
exten => s,6,Goto(ext-local,200,1)

This setup for ONE Distinctive Ring only (Bellcore-dr3), if you have
more than one, you can use "sip debug" to retrieve the header
information

The BEST reference for this subject is:
http://voxilla.com/PNphpBB2-viewtopic-t-3935-highlight-dring1.html

Hope this helps




		
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