Re: IMS, IM-SSF

[Jonathan Rosenberg <jdrosen@xxxxxxxxx>]

Questions on IMS should probably be directed towards 3gpp mailers, since 
that it is where it is being standardized. For SIP questions, you should 
direct your queries to sip-implementors@xxxxxxxxxxxxxxx, which is where 
general implementation help and Q&A takes place. For issues related to 
sip protocol design, please direct those to the sip list here at IETF, 
sip@xxxxxxxxx

To answer your question, I think you are perhaps talking about a call 
transfer. That is accomplished by sending a REFER request from the 
caller to the called party to transfer them.

-Jonathan R.

Nuno Novo wrote:

> In the IMS network when the Called party, after speaking  with the 
> Caller for a while, sends a BYE request there is a possibility for 
> reconnecting the Caller to another called party  (reconnect). The Caller 
> is putted in a state of standby but is not disconnected.
>
>  
>
> Caller ------------------------à Called party 
> 1--------------------------à Called party 2
>
>  
>
> The question is the following, when the second called party is contacted 
> we need to connect the Caller to this new Called party, so how this is 
> made? Is the Caller informed of the address of the new called party by a 
> SIP UPDATE? Or this process is made in the MRCP that judges this call as 
> a conference call?
>
>  
>
> Regards, 
>
>                       Nuno Novo
>
>  
>
>
> ------------------------------------------------------------------------
>
> _______________________________________________
>
> Ietf@xxxxxxxx
> https://www1.ietf.org/mailman/listinfo/ietf

--
Jonathan D. Rosenberg, Ph.D.                   600 Lanidex Plaza
Director, Service Provider VoIP Architecture   Parsippany, NJ 07054-2711
Cisco Systems
jdrosen@xxxxxxxxx                              FAX:   (973) 952-5050
http://www.jdrosen.net                         PHONE: (973) 952-5000
http://www.cisco.com

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