[Serusers] Problem with CANCEL messages and Cisco 7905

[Kristian Larsson]

On Wed, Nov 08, 2006 at 08:25:57AM +0100, Atle Samuelsen wrote:
> Hi Kristian,
> 
> "Hur er leget?"
Jo tack, bara bra :)

> Related to your problem, I think you might be running a little
> old version of the Software on your 7905. Try to upgrade to latest
> software on it. I know that on cisco 7960 there was this problem some
> time back that they changed the callid or something stupid.
I'm running CP8905080000SIP060111A, or at least
that's what is says under firmware version in the
phone.
I believe it's quite new.. any ideas?
Perhaps a downgrade? Anyone else with a 7905
running some "stable" firmware?

   Kristian.



> * Kristian Larsson <kristian at netatonce.se> [061108 02:21]:
> > Hey!
> > 
> > This is my first time posting to the list,
> > although I'm a long time reader :)
> > 
> > I have searched the archives as well as the
> > internet and found no solution or answer to this
> > so far. Perhaps my Google Kung Fu isn't what it
> > should be.
> > 
> > Anyhow, I have a cisco 7905 phone working
> > together with a SER machine. When dialing to the
> > 7905 phone from another phone and hanging up on
> > the caller phone before answering the 7905, ie
> > CANCEL before the call has actually been setup, I
> > get a "SIP/2.0 481 Call Leg/Transaction Does Not Exist."
> > back from the Cisco phone.
> > 
> > It's a pretty basic configuration (basically the
> > one used in the examples for call forwarding).
> > What I want to know is how the phone identifies a
> > Call Leg/Transaction. I have used ngrep quite
> > extensively and found nothing.
> > Most values in both the INVITE and CANCEL message
> > are equal. 
> > 
> > I've also got a Thomson ATA box which does not
> > show the same behaviour despite being connected to
> > the same SER.
> > 
> > What values are used to identify a transaction,
> > how can I see if two messages are of the same
> > transaction?
> > 
> > Perhaps this is actually a user agent problem, but
> > I don't really know where to turn for help with
> > this 7905 (Cisco only provides support if you use
> > their Call Manager solution).
> > 
> > regards,
> >    Kristian.
> > 
> > -- 
> > Kristian Larsson                                         KLL-RIPE
> > Network Engineer                            Net At Once [AS35706]
> > email: kristian at netatonce.se                      irc: kll at ircnet
> > phone: +46 470 592717                        cell: +46 704 910401                       
> > _______________________________________________
> > Serusers mailing list
> > Serusers at lists.iptel.org
> > http://lists.iptel.org/mailman/listinfo/serusers

-- 
Kristian Larsson                                         KLL-RIPE
Network Engineer                            Net At Once [AS35706]
email: kristian at netatonce.se                      irc: kll at ircnet
phone: +46 470 592717                        cell: +46 704 910401