See below. > -----Original Message----- > From: [email protected] [mailto:sip- > [email protected]] On Behalf Of kaiduan xie > Sent: Friday, February 20, 2009 3:09 PM > To: Dale Worley > Cc: [email protected] > Subject: Re: [Sip-implementors] in-active in answer with sendonly in > offer > > The case is that the a basic call is established, A and B are talking. > A puts B on hold by sending offer with sendonly first, but B responds > with inactive. B did not put A on hold first before receiving sendonly > from A. This is kind weird, but rfc3264 says that it is valid. > [Neel] My guess, it could be just that the UA B could free up DSP resources if it sends inactive. Sending recvonly, it may still have to keep the DSP resources.
Thanks, Neel. > kaiduan > > > > ----- Original Message ---- > From: Dale Worley <[email protected]> > To: kaiduan xie <[email protected]> > Cc: [email protected] > Sent: Friday, February 20, 2009 3:57:58 PM > Subject: Re: [Sip-implementors] in-active in answer with sendonly in > offer > > On Fri, 2009-02-20 at 11:42 -0800, kaiduan xie wrote: > > Hi, all, > > > > What is the purpose of putting inactive in answer when receiving a > > sendonly offer? Rfc3264 Section 6.1 says, > > > > "If a stream is offered as sendonly, the corresponding stream MUST > be > > marked as recvonly or inactive in the answer." > > > > In rfc5359, recvonly is returned in hold case. > > "inactive" means the answerer does not desire to receive either. > > This case will happen if both phones have put the call on hold. > > Dale > > > > __________________________________________________________________ > Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark > your favourite sites. Download it now at > http://ca.toolbar.yahoo.com. > _______________________________________________ > 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
