Hi, I think that it is wrong to say that port '0' would simply set a stream to inactive. Port '0' means that a stream is removed. Yes, you still need to keep it in the SDP, but all resources associated with it may be released.
Regards, Christer > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Rayees Khan > Sent: 8. toukokuuta 2007 12:02 > To: Kannaiyan; [email protected] > Subject: Re: [Sip-implementors] Multiple 'm' lines in SDP and > the reinvitebehaviour > > > The re-INVITE is invalid as far as OFFER-ANSWER id concerned. > A new OFFER should have all the media description of previous > OFFER and can add new ones. Though by changing port to '0', > the stream can be set to inactive. > A server would normally send a 400 response for such request, > though I am not sure of what warning header it would correspond to. > > regards > Rayees > > > > > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf > Of Kannaiyan > Sent: Tuesday, May 08, 2007 9:33 AM > To: [email protected] > Subject: [Sip-implementors] Multiple 'm' lines in SDP and the > reinvitebehaviour > > Hi, > > When I offer in the initial invite, > > m=audio 3456 RTP/AVP 0 3 4 5 > m= video 4578 RTP/AVP 98 97 > m= audio 3487 RTP/AVP 0 3 4 5 > > later if I want to reinvite, is it possible to change it to, > > m=audio 3456 RTP/AVP 0 3 4 5 > m= video 4578 RTP/AVP 98 97 > > skipping the third line. > > 1. Is the reinvite of the missing third line is a Violation? > 2. What response should I send for this? > > Regards, > Kannaiyan > > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > ______________________________________________________________________ > This email has been scanned by the MessageLabs Email Security System. > For more information please visit > http://www.messagelabs.com/email > ______________________________________________________________________ > > > > > -------------------------------------------------------------- > -------------------- > IMPORTANT The information contained in this e-mail any > attachments is intended only for the named recipient and may > be privileged or confidential. > > If you are not the intended recipient, please notify us > immediately on +44 (0)1908 425000 and do not disclose, copy, > distribute or take any action based on the contents of this e-mail. > > You should understand and accept that, when communicating > with us by e-mail, it is not a totally secure communication medium. > > We accept no liability for any direct, indirect or > consequential loss arising from any action taken in reliance > on the information contained in this e-mail and give no > warranty or representation as to its accuracy or reliability. > > DIGITALK has the facility to monitor and read both incoming > and outgoing communications by e-mail. In line with industry > efforts to reduce the proliferation of Un-Solicited SPAM > messages, DIGITALK uses various methods including Reverse-DNS > lookups and ban-lists to prevent malicious content reaching our users. > > This message and any attachments has been scanned for known > viruses. However, we would advise you to ensure the content > is indeed virus free. We do not, to the extent permitted by > law, accept any liability (whether in contract, negligence or > otherwise) for any virus infection and/or external compromise > of security and/or breach of confidentiality in relation to > transmissions sent by e-mail. > > VAT No: GB 876 3287 81. Reg No: 3080801 > Place of Registration: England > Registered Office Address: 2 Radian Court, Knowlhill, Milton > Keynes > -------------------------------------------------------------- > --------------------" > > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
