[Kamailio-Users] Problem with ACK

Klaus Darilion klaus.mailinglists at pernau.at
Mon Dec 7 22:31:35 CET 2009


Inline ...

Ricardo Martinez schrieb:
> Hello List.
> 
> I’m testing the last kamailio versión 1.5.3.  I’m using the default 
> configuration file and a gateway sending calls to a registered device.
> 
> U 10.0.0.11:5060 -> 10.0.0.7:5060
> SIP/2.0 200 OK.
> Via: SIP/2.0/UDP 10.0.0.7:5060;branch=z9hG4bK894be985a441.
> Record-Route: <sip:10.0.0.11;lr=on>.
> From: <sip:3341876 at 10.0.0.7>;tag=894be985a4.
> To: <sip:5501234567 at 10.0.0.11>;tag=3079903260.
> Call-ID: 892a1d4b-35e7-e926-8085-0002a401f510 at 10.0.0.7.
> CSeq: 41 INVITE.
> Allow:  INVITE, ACK, CANCEL, BYE, NOTIFY, REFER, OPTIONS, UPDATE, PRACK, 
> SUBSCRIBE, INFO.
> Allow-Events: talk, hold, conference, LocalModeStatus.
> Contact: "5501234567" 
> <sip:5501234567 at 10.0.0.20:5060;transport=udp>;+sip.instance="<urn:uuid:00000000-0000-1000-8000-00085D1B6C7A>".

The proxy sends a correct Contact header to the gateway.

> U 10.0.0.7:5060 -> 10.0.0.11:5060
> ACK  SIP/2.0.

The gateway sends a broken RURI.

--> The gateway (or any transparent component between the proxy and the 
gateway - e.g. a SIP firewall) is broken.

Maybe the GW gets confused by the GRUU parameter included in the contact 
header.

regards
klaus





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