[Kamailio-Users] bug in subscribe when contact uses tcp transport?

[Iñaki Baz Castillo]

2009/3/8 Daniel-Constantin Mierla <miconda at gmail.com>:
> Hello Juha,
>
>
> reviewing your examples, all seems fine. In the first case it is UDP
> contact because the first proxy is doing transport gateway (tcp-to-udp)
> and presence server get's the SUBSCRIBE via UDP. Therefore it sets the
> protocol to UDP.

Yes. It must be checked that the NOTIFY frmo the presence server have
a RURI containing "transport=tcp".

But the bug I reported in OpenSIPS was the opposite:

  Phone ---(UDP)--- Proxy ---(TCP)--- PresenceServer

I route the SUBSCRIBE to the PresenceServer using TCP by seting:
  $du="sip:PresenceServer;transport=tcp"

but the 202 replied by the presence server contains a "Contact" with
no "transport=tcp". This means that refresh-SUBSCRIBE's from the phone
would fail since they would be routed to the PresenceServer using UDP
(in case of firewall they'll fail).


-- 
Iñaki Baz Castillo
<ibc at aliax.net>