[Serusers] How Do I Enable Session Timers On PSTN->SIP Calls?

[Jiri Kuthan]

At 03:01 AM 3/24/2005, Java Rockx wrote:
>Hi All.
>
>Our PSTN gateway supports Session-Expires for re-INVITEs. The session
>timer is "automagically" enabled when dialing SIP->PSTN.
>
>However, when calling PSTN->SIP re-INVITEs do not happen, however the
>PSTN GW does support them.
>
>I think the problem is that PSTN->SIP calls need to (for some reason)
>explicitly request session timers.
>
>How would I request this? I know I can add the "Session-Expires:
>120;refresher=??" header, 

That's possible just using textops.

>but do I then do this in the 200OK response
>back to the PSTN GW?

textops too, in onreply_route

I am not having a sample with me, but Jan posted one a while ago.


>Also, if the PSTN->SIP call is asking the PSTN GW to enable session
>timers, would the "refresher=" tag be set to UAS or UAC?

Then it is UAC for this transaction.

-jiri