[Kamailio-Users] UAC on ACK in reInvite

[Schober Walter]

Hi Klaus!

Thanks for the hint! Indeed looking into the vsf=xxx parameter a little bit closer, I found out, that on the reInvite the uac_replace() is done due to the Route: vsf=xxx Param (knew that :-), but the vsf=xxx is not added again on to the Record-Route (missed that :-). So the 2nd 200 OK doesn't contain it in the route-set anymore, thus the following ACK doesn't have it in the Route Header.

Is it up to me to add it to Record-Route Header, if the Route Header contains these parameters? Shouldn't the uac_replace() do that on replacing the From again?

Let's see, what I can do here.

Br
Walter
 

-----Ursprüngliche Nachricht-----
Von: Klaus Darilion [mailto:klaus.mailinglists at pernau.at] 
Gesendet: Dienstag, 25. November 2008 18:04
An: Schober Walter
Cc: users at lists.kamailio.org
Betreff: Re: [Kamailio-Users] UAC on ACK in reInvite

Hi Walter!

Automatic restoring uses record route parameters to store the original from URI. Maybe there is something wrong with the RR header.

I can not remember any changes in UAC module, thus I am not sure if an update will help you.

regards
klaus


Schober Walter wrote:
> Hello All!
> 
> Tried to fix that anyhow but without success yet. Anyone who could 
> just tell me, if it's fixed in 1.4.something?
> 
> Scenario: 
> A -> Openser 1.1.1 -> Openser 1.1.1 -> Openser 1.1.1 (UAC:normalize 
> From to phone number in national format) -> B
> 
> A Invites B	=> all OK
> A reInvites B with T.38	-> INVITE => OK
>                         <- 200 OK => OK
>                         -> ACK    => From field not handled by UAC.
> 
> UAC config all default, so UAC restore mode "auto". Neither INVITE nor 
> ACK get's uac_replace'd in if(loose_route()) block, but INVITE get's 
> handled properly.
> 
> Upgrading to 1.4 or 1.3 is risky - or is it not? ;-) - because never 
> touch a running system, isn't it?
> But then that customer comes with that Allied Telesis CPE :-) (And Ati 
> blames the proxy for not matching the ACK in the CPE although they use 
> a from-tag, too).
> 
> Many Thanks!
> br
> Walter
> 
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