[Serusers] Session-Expires Header

Klaus Darilion klaus.mailinglists at pernau.at
Wed Mar 9 08:13:51 CET 2005


Hi!

Jiri Kuthan wrote:
> 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.

How does the proxy behave in this case? Are there any things the proxy 
has to do to support session timer?

klaus




More information about the sr-users mailing list