[Asterisk-Dev] SIP CANCEL/BYE authorization patch

[Christoph Frei]

Hi James,

James Dennis wrote:

>Please find attached a patch to SIP that sends a Proxy-Authentication header
>for BYE and CANCEL. This is required in some Cisco environments. The absence
>of this patch can lead to calls not being hung up.
>
works for me (Cisco 3640 with VIC-2BRI), thanks ;-)

Mark: This fixes the second problem i've reports earlier today, BYE now
works without SIP481 error and hangup-delay. I'm still getting SIP487
on CANCEL, is this really an error or just a confirmation for the cancel?

Regards,
Christoph