Hi Pranab, In this scenario, if B is not answering the call ... after a timeout, A will send a CANCEL message to B to cancel the pending INVITE request and B will respond with 200|OK. Then B will respond with a 487|Request Terminated and A will ACK it to tear down the call.
Cheers, Aman On Tue, May 22, 2012 at 11:53 AM, Sumit Jindal <sumitjindal.n...@gmail.com>wrote: > Hi Pranab, > > you can also refer http://tools.ietf.org/rfc/rfc3665.txt > > for call flows under following section: > > 3.8. Unsuccessful No Answer . . . . . . . . . . . . . . . . . 67 > 3.9. Unsuccessful Busy. . . . . . . . . . . . . . . . . . . . 75 > 3.10. Unsuccessful No Response from User Agent . . . . . . . . 80 > > > > Regards, > Sumit Jindal > > On Tue, May 22, 2012 at 11:49 AM, Raphael Tryster < > raphael.trys...@teledata-networks.com> wrote: > > > Pranab, > > > > I changed the subject because these postings are supposed to help not > > only the person who asks, but also others who scan the archives years > > later. Therefore, the subject line should be useful for searching. > > > > RFC 3261 13.3.1.3 suggests errors 486 or 488, depending on what you mean > > by "did not receive the call". Another possibility is that A's UAC may > > time out while B is still ringing, and send CANCEL. > > > > Raphael > > > > > > -----Original Message----- > > From: sip-implementors-boun...@lists.cs.columbia.edu > > [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of > > pranab sahoo > > Sent: Tuesday, 22 May 2012 7:49 AM > > To: sip-implementors > > Subject: [Sip-implementors] Need Help > > > > Hi all, > > > > suppose A calls B.B's phone start ringing,B did not recieve the > > call.Finally B's phone stops ringing after some time.So what will be > > the error response will go from B to A? > > > > Thanks in advance. > > > > pranab > > Brazil > > _______________________________________________ > > Sip-implementors mailing list > > Sip-implementors@lists.cs.columbia.edu > > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > NOTICE: This email and any files transmitted with it are > Teledata-Networks > > confidential and intended solely for the use of the individual or entity > to > > whom they are addressed. If you have received this email in error please > > notify the sender. This message contains Teledata-Networks confidential > > information and is intended only for the individual named. If you are not > > the named addressee you should not disseminate, distribute or copy this > > e-mail. Please notify the sender immediately by e-mail if you have > received > > this e-mail by mistake and delete this e-mail from your system. If you > are > > not the intended recipient you are notified that disclosing, copying, > > distributing or taking any action in reliance on the contents of this > > information is strictly prohibited. > > > > > > > > _______________________________________________ > > Sip-implementors mailing list > > Sip-implementors@lists.cs.columbia.edu > > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > > > > > > -- > Regards, > Sumit Jindal > _______________________________________________ > 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
