[Spce-user] How to handle methode UPDATE

Andreas Granig agranig at sipwise.com
Mon Oct 31 17:47:54 EDT 2011


On 10/31/2011 09:01 PM, Klaus Peter v. Friedeburg wrote:
> When I configure the session-timer in sems to 600 the PSTN-Gateway give us a reply on our INVITE-Message:
> 	422 Session Intervall too small, with Min-SE 1800
> Then our ngcp-sems send a new INVITE with Session-Expires: 1800
> But after exactly 600 second sems terminate the call with BYE
> No reINVITE is sending from sems
> The mistake is that sems don't switch the internal Session-timer to the handshaked Session-Expire: 1800

Anything on the second call leg towards the client?

> When I configure the session time in sems to 1800 or greater we get from the PST-Gateway after 1800 second a reINVITE, with:
> 	Session-Expires: 1800;refresher=uac
> The answer from sems is:
> 	200 OK with Session-Expires: 1800;refresher=uas
> This is not correct!! Sems must answer with the whole Text from the reINVITE in this example with
> 	200 OK Session-Expires: 1800;refresher=uac

I think I've seen this behavior before and discussed it with the Sems
devs, but we didn't follow up on that because it was related to another
@Stefan, what do you think of that?


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