Thanks Paul, Yeah, I think just writing the email convinced me I'm worrying about nothing.
Cheers Stephen Paterson Senior Developer | SYNETY www.synety.com ddi: 01134 166029 main: 0330 335 0000 SMARTER COMMUNICATIONS Confidentiality: This e-mail transmission, including any attachments, is intended only for the named recipient(s) and may contain information that is privileged, confidential and/or exempt from disclosure under applicable law. If you have received this transmission in error, or are not the named recipient(s), please notify the sender immediately by return e-mail and permanently delete this transmission, including any attachments. Security: This e-mail and any attachments are believed to be free from any virus but it is the responsibility of the recipient to ensure this is so. E-mail is not a 100% secure communications medium. We recommend you observe this when e-mailing us. -----Original Message----- From: Paul Kyzivat [mailto:pkyzi...@alum.mit.edu] Sent: 02 December 2013 18:40 To: sip-implementors@lists.cs.columbia.edu Subject: Re: [Sip-implementors] Media description with no c= but port = 0 On 12/2/13 4:49 AM, Stephen.Paterson wrote: > Hi all, > > I'm sending an INVITE with two m= lines, one audio, one video. The response I > receive only accepts the audio stream - port = 0 for the video related m= > line. > There is no global connection address and the audio description does contain > a c= line. The video description does not. > > As far as I can tell, a c= line is mandatory regardless of whether the port > is zero or not but I can't think of any problem with accepting it anyway as > the video is being rejected and the audio description is fine. > Can anyone think of any possible problems if I accept this SDP? Or perhaps > point me to the spec that says this is fine if I've missed something? It is > the simplest of changes for me to allow it but at the moment I'm clearing the > call down which seems a bit harsh. I would accept it. I can't see any good reason not to do so. Thanks, Paul > Cheers > > Stephen Paterson > Senior Developer | SYNETY > www.synety.com<http://www.synety.com/> > > ddi: 01134 166029 > main: 0330 335 0000 > > SMARTER COMMUNICATIONS > Confidentiality: This e-mail transmission, including any attachments, is > intended only for the named recipient(s) and may contain information that is > privileged, confidential and/or exempt from disclosure under applicable law. > If you have received this transmission in error, or are not the named > recipient(s), please notify the sender immediately by return e-mail and > permanently delete this transmission, including any attachments. > > Security: This e-mail and any attachments are believed to be free from any > virus but it is the responsibility of the recipient to ensure this is so. > E-mail is not a 100% secure communications medium. We recommend you observe > this when e-mailing us. > > _______________________________________________ > Sip-implementors mailing list > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
