[Serusers] exec_dset() question.

[Ricardo Martinez]

Hello.
	I finally was able to change the R-URI for a particular call.  I
made a simple test program like this one:

echo "$*" >/usr/local/etc/ser/redirec.log
num=1111234567 >>/usr/local/etc/ser/redirec.log
echo sip:$num at mysip.domain.com
exit 0


So every call is "translated" to the number indicated in the program.
At this point i have a question.

I saw the sip debug for a call made to my SER.  And i realized that the
authorization is still made with the original called number.  Then when the
INVITE goes to outgoing gateway i see that uri changed, as i expected, but
all the other paramters are intact.  You can see it in this INVITE message
(outgoing INVITE from SER).

INVITE sip:1111234567 at gw1.mydomain.com:5060 SIP/2.0
Record-Route: <sip:0012012287000 at mysip.domain.com;ftag=2c425f59a4;lr=on>
Via: SIP/2.0/UDP mysip.domain.com;branch=z9hG4bK03b6.f1684071.0
Via: SIP/2.0/UDP xx.xx.148.242:5060;branch=z9hG4bK2c425f59a4249
From: <sip:5555832351 at mysip.domain.com>;tag=2c425f59a4
To: <sip:0012012287000 at mysip.domain.com>
Call-ID: 2c239842-ca97-5f35-81590002a400f1e9xx.xx.148.242
CSeq: 249 INVITE
Supported: timer, replaces
Min-SE: 1800
Date: Sat, 28 May 2005 07:52:12 GMT
User-Agent: AddPac SIP Gateway
Contact: <sip:5555832351 at xx.xx.148.242>
Accept: application/sdp..Proxy-Authorization: Digest username="javier",
realm="mysip.domain.com", nonce="417981a87eebd1f4cc0db371a",
uri="sip:0012012287000 at mysip.domain.com", qop=auth, nc=00000001,
cnonce="0c85cf88", response="3b96cb278bfc2c898297c6568a9", algorithm=MD5
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, UPDATE, REFER, NOTIFY
Content-Type: application/sdp
Content-Length: 241
Max-Forwards: 69
P-hint: GATEWAY..
v=0
o=5555832351 1117266732 1117266732 IN IP4 xx.xx.148.242
s=AddPac Gateway SDP
c=IN IP4 xx.xx.148.242
t=1117266732 0
m=audio 23230 RTP/AVP 18 101
a=rtpmap:18 G729/8000
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20

Do i have to append something else?.  I'm not really sure about this.
Here is the part when i call exec_dset()

        # Llamada a Rutina Externa para cambio de numero
        if (method=="INVITE") {
                exec_dset("/usr/local/etc/ser/redirect.sh");
        };

is at the beggining of my ser.cfg

Here is part of my routing configuration.

  if ( (uri=~"^sip:111.*@.*") | (uri=~"^sip:333.*@.*") |
(uri=~"^sip:0.*@.*") ){
          if (method=="INVITE")  {
                  log(1,"FORWARDING : Llamada hacia plataforma H.323\n");
                  route(1);
                  break;
           };
   };

Then 

route[1] 
{
        
        rewritehostport("gw1.mydomain.com:5060");
        append_hf("P-hint: GATEWAY\r\n");
        
        
        t_relay();
        break;
 };


I really hope that someone can help me here!
Thanks in advance.

Ricardo.


-----Mensaje original-----
De: Ricardo Martinez [mailto:rmartinez at redvoiss.net]
Enviado el: Viernes, 22 de Octubre de 2004 15:12
Para: 'serusers at lists.iptel.org'
Asunto: [Serusers] exec_dset() question.


Hello.
	I'm trying to use the exec_dset() command to call an external
application that rewrite the Request-URI.  What i want to know if it's
possible to take the value of the original R-URI by the exec_dset( ) and
then according to the external application rewrite the value.  Notice that
the important thing here is know the original value of the R-URI.  I have
been searching in the mail list but i could not find anything related.  Hope
that someone can help me.
Thanks in advance.

Best Regards.

Ricardo Martinez Ogalde

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