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 Post subject: Can I re-write/change the received DID to something else?
PostPosted: Sat May 23, 2015 9:23 am 
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Joined: Fri Mar 06, 2009 9:12 pm
Posts: 188
Hello,

My provider sends their DIDs with a prefix number and # before the number, for example 1234567#123456789123.
This is how is received in sip:

From: <sip:[email protected]>;tag=1041231023-212435
To: 1234567#123456789123 <sip:1234567#[email protected]>

Does anybody know how can I change the DID in order to show only the number (i.e 123456789123)?
Using the did with the static prefix 1234567# is not easy or practical as I need to refer to that format inside a2b as well.
It would be more sensible to only use the did number alone.

Any ideas?

N


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 Post subject: Re: Can I re-write/change the received DID to something else?
PostPosted: Mon May 25, 2015 2:28 pm 
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Joined: Mon Mar 02, 2009 8:56 pm
Posts: 271
If you have a search around there are quite a few dialplan snippets for removing a plus sign from the front of an incoming call, like this - http://orourketech.com/elastix-plus-sig ... ng-things/

You should be able to do the same sort of thing to strip the number off the front. Run the dial plan before passing the call to the a2billing PHP


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 Post subject: Re: Can I re-write/change the received DID to something else?
PostPosted: Mon May 25, 2015 2:30 pm 
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Joined: Mon Mar 02, 2009 8:56 pm
Posts: 271
Actually that link was for removing it from the caller ID. You want something like this - http://www.freepbx.org/support/document ... alled-numb - for stripping it from EXTEN (the number called)


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 Post subject: Re: Can I re-write/change the received DID to something else?
PostPosted: Tue May 26, 2015 6:48 am 
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Joined: Fri Mar 06, 2009 9:12 pm
Posts: 188
bucasia wrote:
Actually that link was for removing it from the caller ID. You want something like this - http://www.freepbx.org/support/document ... alled-numb - for stripping it from EXTEN (the number called)


It worked! I am providing below the working custom context for others to refer in the future.

[FROM-PROVIDER-CUSTOM]
exten => _1234567#X!,1,Noop(Stripping 1234567# from start of DID number received)
exten => _1234567#X!,n,Goto(from-trunk,${EXTEN:8},1)
exten => _[*0-9]!,1,Goto(from-trunk,${EXTEN},1)
exten => h,1,Hangup()

I have however another task now which is to playback a certain audio file to outside callers that reached a DID which is not –yet- assigned to a user. I have created the following extension which works fine if I call it directly however I am not sure how to combine it with the above context, when the DID received is not in use. Any ideas?

[custom-unassigned-number]
; This extension plays a message to the caller, notifying them that the number is not currently assigned to a user.

exten => 1244,1,Progress()
exten => 1244,n,Wait(1)
exten => 1244,n,Set(VOLUME(TX)=0)
exten => 1244,n,Playback(unassigned-number,noanswer)
exten => 1244,n,Hangup()


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