Re: [splices] Answering a Call Using Two Separate Devices proposal
"Shekh-Yusef, Rifaat (Rifaat)" <rifatyu@avaya.com> Wed, 27 April 2011 15:49 UTC
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From: "Shekh-Yusef, Rifaat (Rifaat)" <rifatyu@avaya.com>
To: Paul Kyzivat <pkyzivat@cisco.com>, "splices@ietf.org" <splices@ietf.org>
Date: Wed, 27 Apr 2011 11:49:34 -0400
Thread-Topic: [splices] Answering a Call Using Two Separate Devices proposal
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Subject: Re: [splices] Answering a Call Using Two Separate Devices proposal
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> -----Original Message----- > From: splices-bounces@ietf.org [mailto:splices-bounces@ietf.org] On Behalf Of > Paul Kyzivat > Sent: Monday, April 25, 2011 8:44 AM > To: splices@ietf.org > Subject: Re: [splices] Answering a Call Using Two Separate Devices proposal > > > On 4/25/2011 12:26 AM, gao.yang2@zte.com.cn wrote: > > > > > > Then, during the adding video stream stage, Alice's desk phone send > > INVITE(with video) to Alice's PC. I think Alice PC can accept the INVITE > > request by Alice's manual action, while not by the refer-action indication. > > Yes, that is certainly possible. > What is tricky is what appears on the UI of the PC in this circumstance. > Some possibilities: > - appears as a "normal" (new) video call from Alice > - appears as a "normal" (new) video call from Bob > - appears as something special - a request for video support > from the desk phone. > > To get this to be anything but the first of the above will require > *something* we don't currently have. > I think that we should try to achieve the second option of the 3 options you listed above. How about if the PC subscribes to the Desk Phone dialog event package with include-session-description, combined with Peter's idea of slow start INVITE with Join from the PC, as follows: | SUBSCRIBE Event: dialog;include-session-description | |-------------------->| | | | 200 | | | |<--------------------| | | | NOTIFY [100 Trying] | | | |<--------------------| | | | OK | | | |-------------------->| | | (*) | | | | | | | | | | | | The following is a re-INVITE from the remote party (Bob) to add video to the existing audio call | | | | | | | INVITE Alice [A/V] | | | |<--------------------| | | INVITE Alice [A/V] | | | |<--------------------| | | | 100 Trying | | | |-------------------->| | | | | 100 Trying | | | |-------------------->| | | | | | | | | The PC gets a notification of the new incoming call and the fact that it is video call. | NOTIFY dialog-info with session description | |<--------------------| | | | 200 OK | | | |-------------------->| | | | | | | The PC prompts the user and waits for his response. When the user accepts the request, the PC initiates a slow start INVITE to the Desk Phone as follows: | | | | | INVITE Join dialog1 | | | |-------------------->| | | | 200 [Video] | | | |<--------------------| | | | ACK [Video] | | | |-------------------->| | | | | 200 OK [A/V] | | | |-------------------->| | | | | 200 OK [A/V] | | | |-------------------->| | | | | Regards, Rifaat
- [splices] Answering a Call Using Two Separate Dev… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Paul Kyzivat
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Peter Musgrave
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Peter Musgrave
- Re: [splices] Answering a Call Using Two Separate… Paul Kyzivat
- Re: [splices] Answering a Call Using Two Separate… Paul Kyzivat
- Re: [splices] Answering a Call Using Two Separate… Peter Musgrave
- Re: [splices] Answering a Call Using Two Separate… gao.yang2
- Re: [splices] Answering a Call Using Two Separate… Paul Kyzivat
- Re: [splices] Answering a Call Using Two Separate… Elwell, John
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Paul Kyzivat
- Re: [splices] Answering a Call Using Two Separate… Elwell, John
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Paul Kyzivat
- Re: [splices] Answering a Call Using Two Separate… Simon Pietro Romano
- Re: [splices] Answering a Call Using Two Separate… Peter Musgrave
- Re: [splices] Answering a Call Using Two Separate… Salvatore Loreto
- Re: [splices] Answering a Call Using Two Separate… Paul Kyzivat
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)
- Re: [splices] Answering a Call Using Two Separate… Paul Kyzivat
- Re: [splices] Answering a Call Using Two Separate… Shekh-Yusef, Rifaat (Rifaat)