[Serusers] Session-Expires Header

[Jiri Kuthan]

At 11:04 PM 3/8/2005, Nils Ohlmeier wrote:
>On Tuesday 08 March 2005 22:54, Java Rockx wrote:
>> Pardon me for asking such simple questions, but is the answer for
>> generating re-INIVITE messages to simply use SIP clients that support
>> the header in its configuration?
>
>Both UA's have to support the Session-Timer draft, otherwise the inserted 
>Session-Expires Header will simply be ignored and you will never see any 
>re-INVITE's. But if both UA's support the Session-Timer they should normaly 
>agree on using automatically by looking at the Supported header. So in my 
>opinion there is no extra value in adding a Session-Expires header to a 
>request at a proxy.


That's actually not correct. It is sufficient in one UA supports ST. It is up to 
proxy server to handle the case correctly. We do that and there are reasonable
use cases.

-jiri