asterisk users - Apr 2009 - dialling multiple extensions in an internal context

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Hi there.  I've done some googling around to try and find an example  
of what I'm trying to do, but it's one of those things that just seems  
hard to find the right terms to search for.  If there's some  
documentation out there on this, I'd appreciate being pointed in the  
right direction.   If not, then if someone has some ideas I'd   
appreciate that too. :)


What I'm trying to do is set up some 'special' extensions in my  
internal context to change variables, or change something else in the  
session before dialling.  To be clearer, here's an example.  Say I've  
got this rather simple dial plan:

[globals]
TRUNK1=Zap/1
TRUNK2=Zap/2
TRUNK=${TRUNK1}

[internal]
_NXXXXXX,1,Dial(${TRUNK}/${EXTEN})


I'd like to add an extension which I can dial before placing the  
actual call to change which trunk I'm using, like so:

*55,1,SetVar(TRUNK=${TRUNK2})

The problem is that once that's done, asterisk stops looking for me to  
dial an extension, and I'm trying to figure out how to get back to the  
top of the context and have asterisk wait for a new extension to  
dial.  I've dug through the Asterisk O'Reilly book, and googled around  
some, but haven't come up with the answer.

Thoughts anyone?

Thanks,
   Matt Pounsett


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2009/4/19 Matthew Pounsett <matt at conundrum.com>
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> Hash: SHA1
>
>
> Hi there.  I've done some googling around to try and find an example
> of what I'm trying to do, but it's one of those things that just
seems
> hard to find the right terms to search for.  If there's some
> documentation out there on this, I'd appreciate being pointed in the
> right direction.   If not, then if someone has some ideas I'd
> appreciate that too. :)
>
>
> What I'm trying to do is set up some 'special' extensions in my
> internal context to change variables, or change something else in the
> session before dialling.  To be clearer, here's an example.  Say
I've
> got this rather simple dial plan:
>
> [globals]
> TRUNK1=Zap/1
> TRUNK2=Zap/2
> TRUNK=${TRUNK1}
>
> [internal]
> _NXXXXXX,1,Dial(${TRUNK}/${EXTEN})
>
>
> I'd like to add an extension which I can dial before placing the
> actual call to change which trunk I'm using, like so:
>
> *55,1,SetVar(TRUNK=${TRUNK2})
>
> The problem is that once that's done, asterisk stops looking for me to
> dial an extension, and I'm trying to figure out how to get back to the
> top of the context and have asterisk wait for a new extension to
> dial.  I've dug through the Asterisk O'Reilly book, and googled
around
> some, but haven't come up with the answer.
>
> Thoughts anyone?

How about, something like one of these...

exten => _*55NXXXXXX,1,SetVar(TRUNK=${TRUNK2})
exten => _*55NXXXXXX,n,Dial(${TRUNK}/${EXTEN:3})

or

exten => _*55NXXXXXX,1,SetVar(TRUNK=${TRUNK2})
exten => _*55NXXXXXX,n,Goto(internal,${EXTEN:3},1)

or

exten => *55,1,SetVar(TRUNK=${TRUNK2})
exten => *55,n,DISA(no-password,internal)

or

exten => *55,1,SetVar(TRUNK=${TRUNK2})
exten => *55,n,WaitExten(5)

or use your imagination :)

d
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Can't you handle that by defining an outbound route? set it to hit a 
trunk or set of trunks when the correct dial pattern is detected?

Matthew Pounsett wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
>
> Hi there.  I've done some googling around to try and find an example  
> of what I'm trying to do, but it's one of those things that just
seems
> hard to find the right terms to search for.  If there's some  
> documentation out there on this, I'd appreciate being pointed in the  
> right direction.   If not, then if someone has some ideas I'd   
> appreciate that too. :)
>
>
> What I'm trying to do is set up some 'special' extensions in my
> internal context to change variables, or change something else in the  
> session before dialling.  To be clearer, here's an example.  Say
I've
> got this rather simple dial plan:
>
> [globals]
> TRUNK1=Zap/1
> TRUNK2=Zap/2
> TRUNK=${TRUNK1}
>
> [internal]
> _NXXXXXX,1,Dial(${TRUNK}/${EXTEN})
>
>
> I'd like to add an extension which I can dial before placing the  
> actual call to change which trunk I'm using, like so:
>
> *55,1,SetVar(TRUNK=${TRUNK2})
>
> The problem is that once that's done, asterisk stops looking for me to
> dial an extension, and I'm trying to figure out how to get back to the
> top of the context and have asterisk wait for a new extension to  
> dial.  I've dug through the Asterisk O'Reilly book, and googled
around
> some, but haven't come up with the answer.
>
> Thoughts anyone?
>
> Thanks,
>    Matt Pounsett
>
>
>