hi, For once the RFC seems to be pretty strict in this matter ;) I have been creating sipp scenarios lately, the RFC describes exactly the behaviour I have encountered.
Further down it mentions the following: If the UAS did not find a matching transaction for the CANCEL according to the procedure above, it SHOULD respond to the CANCEL with a 481 (Call Leg/Transaction Does Not Exist). are you getting that back? cheers, Patrick. > Hi, > > I hit another problem with a Cisco PGW in combination with CANCEL, and > I'm not sure which fault it is. If I do uac_replace_from in the INVITE, > the From-Header is altered somehow and sent to the PGW. So if A calls B > where B is a PGW, the From from A to OpenSER is for example > sip:[EMAIL PROTECTED] and from OpenSER to B it's sip:[EMAIL PROTECTED] > > If the call is cancelled, the From-header isn't altered, so the From > from A to OpenSER is sip:[EMAIL PROTECTED] and from OpenSER to B it's > sip:[EMAIL PROTECTED] as well. > > Now the PGW seems to ignore this CANCEL, and I guess it's because of the > different From-usernames, since it works if I don't do any uac_replace_from. > > RFC3261 says in ยง9.1: > The Request-URI, Call-ID, To, the numeric part of CSeq, and From header > fields in the CANCEL request MUST be identical to those in the > request being cancelled, including tags. > > So is it correct behavior of the PGW because the From header in the > CANCEL is different from the From header in the INVITE? Should OpenSER > alter the From in the CANCEL as well? Or should the PGW just check the > From tags, but not the From URI? > > Andreas > > _______________________________________________ > Users mailing list > [email protected] > http://lists.openser.org/cgi-bin/mailman/listinfo/users This e-mail is confidential and may well also be legally privileged. If you have received it in error, you are on notice of its status. Please notify us immediately by reply e-mail and then delete this message from your system. Please do not copy it or use it for any purposes, or disclose its contents to any other person: to do so could be a breach of confidence. Thank you for your cooperation. Information pursuant to paragraph 14 Austrian Companies Code: UPC Austria GmbH; Registered Office: Wolfganggasse 58-60, 1120 Vienna Company Register Number: FN 189858d at the Commercial Court of Vienna _______________________________________________ Users mailing list [email protected] http://lists.openser.org/cgi-bin/mailman/listinfo/users
