[Users] Possible to use subst() to alter first line of INVITE?

[Bogdan-Andrei Iancu]

Hi Leif,

use subst_uri to alter the RURI. See:
    http://www.openser.org/docs/modules/1.2.x/textops.html#AEN211

regards,
bogdan

Leif Madsen wrote:
> Evening all!
>
> I'm trying to use subst() to alter the first line of an INVITE I'm
> sending to a remote Asterisk box, although I have been unable to get
> this working. Perhaps I need to use a different function?
>
> The INVITE I'm working with looks like (IPs have been changed to
> protect the innocent):
>
> INVITE sip:s at 192.168.1.250 SIP/2.0
> Record-Route: <sip:192.168.1.190;lr;ftag=as62d28c09>
> Via: SIP/2.0/UDP 192.168.1.190;branch=z9hG4bKcce2.b907e716.0
> Via: SIP/2.0/UDP 192.168.1.147:5060;branch=z9hG4bK5a287301;rport=5060
> From: "lmadsen2#lmentinc" 
> <sip:lmadsen2#lmentinc at 192.168.1.147>;tag=as62d28c09
> To: <4166289921 at switch1>
> Contact: <sip:lmadsen2#lmentinc at 192.168.1.147>
> Call-ID: 791d9cc101c5cbdd2896c0d357cf644c at 192.168.1.147
> CSeq: 102 INVITE
> User-Agent: Asterisk
> Max-Forwards: 69
> Remote-Party-ID: "lmadsen2#lmentinc"
> <sip:lmadsen2#lmentinc at 192.168.1.147>;privacy=off;screen=no
> Date: Thu, 12 Apr 2007 05:00:26 GMT
> Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE, NOTIFY
> Supported: replaces
> Content-Type: application/sdp
> Content-Length: 240
>
>
> I have two subst() I've been playing with. This one works which alters
> the To: line in the INVITE:
>
> subst('/^To: (.*)sip:[^@]*+(.*)$/To: \1$hdr(X-DID)\2/g');
>
> This one does not, which I would like to alter the INVITE
> sip:s at 192.168.1.250 SIP/2.0 of the header. This is the very first line
> in the INVITE.
>
> subst('/^INVITE (.*)sip:[^@]*+(.*)$/INVITE sip:$hdr(X-DID)\2/ig');
>
> I tested the regex online as well, and it seems to work.
>
> Anything I'm missing? Is there another function I can use to alter the
> line I want, or am I up poop creek?
>
> Thanks!
>