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Re: [Linphone-users] CANCEL support??

From: Simon Morlat
Subject: Re: [Linphone-users] CANCEL support??
Date: 14 May 2002 13:46:01 +0200


Le mar 14/05/2002 à 11:25, Shane Purtill a écrit :
> Hi,
> I have read that Linphone does not support the SIP CANCEL method and am
> looking to have this confirmed or denied??
Linphone does not support the CANCEL request.

> If it does support CANCEL the rest of this mail can be ignored.
> How does Linphone interact with the other SIP stacks mentioned in the
> compatibility section of the homepage if it does not support CANCEL?

Incoming CANCEL requests will have no effect, they will be ignored.
In order to terminate a non established call, linphone sends a BYE
instead of CANCEL. I know this is not correct. Also it accepts byes for
non established call.


> What occurs if a CANCEL is received by the Linphone application after an
> INVITATION has been received? i.e. The phone is ringing and then a
> CANCEL is received?? Does the Linphone ignore the message or will it
> cause some sort of error?
> Thanks
> Shane 

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