This document was generated from CDN thread
Created by: Juan J. Martin on 10-03-2010 04:32:58 PM
Dear all,
We are facing a problem in a development. We do a series of checks on a script for authorization of a call using AAA/Radius. Once it is ok to continue, we setup and outbound leg call using a SIP configured dial-peer.
The thing is that this outgoing call leg should carry the same Call-ID as the guid we used when we did the radius authentication/authorization, if not, the destination server rejects the calls as it is not validated. We tried using the set callInfo(guid) code, but what we get is a "Cisco-guid" line added to the INVITE message, whilst the Call-ID does not match the one we are using.
Any ideas would be welcomed.
BR,
Martin.
Subject: RE: Using call guid as Call-Id for outgoing call.
Replied by: Yawming Chen on 10-03-2010 05:44:43 PM
Is it possible that you can show how you get and set guid ?
Thanks !
Subject: RE: Using call guid as Call-Id for outgoing call.
Replied by: Yawming Chen on 10-03-2010 10:05:16 PM
By the way Cisco-Guid in INVITE is in decimal. If you convert it to HEX it should be the same as you see in "get leg_guid"
Subject: RE: Using call guid as Call-Id for outgoing call.
Replied by: Juan J. Martin on 11-03-2010 01:45:23 PM
Hi there,
The Cisco-guid shown on the INVITE does not match the Call-ID (we know one is shown in hex format and the other in decimal).
We are doing this from the incoming dial-peer associated application, so I guess we should move that code to an outbound dial-peer application, which is what we are testing now.
One issue we face moving some code to the outbound application is that a couple of variable values have to be handed to the outbound application. How can we do that?
Thanks,
Martin.
Subject: RE: Using call guid as Call-Id for outgoing call.
Replied by: Juan J. Martin on 11-03-2010 02:24:44 PM
This is how we get/set guid:
set b_guid [infotag get leg_incoming_guid]
...
set callInfo(guid) $b_guid
leg setup $destination callInfo leg_incoming
BR,
Martin.
Subject: RE: Using call guid as Call-Id for outgoing call.
Replied by: Yawming Chen on 11-03-2010 06:45:21 PM
Sorry that I misunderstood you question. So we are talking about CALL-ID vs cisco guid. I thought you were talking about the guid Tcl get didn't translate correctly in cisco-guid in INVITE.
Yes, I noticed that the first 4 octets is fifferent and rest of them are the same.
I doubt SIP CALL-ID will be the same as cisco guid, so far I haven't seen the same one. But I will find it out.
Regarding place the service in outbound dial peer there are a few things different.
In Tcl script
1. script is triggered byev_handoff event
example of state machine
set fsm(CALL_INIT,ev_handoff) "act_firctAct FIRSTSTATE"
2 to get DNIS
use
set dest [infotag get evt_handoff dnis]
In IOS outbound dial-peer config use out-bound keyword
service my_app out-bound
Thanks !
