[asterisk-dev] Setting the context in a SIP channel

[Marc Haisenko]

Hi folks,
I've got a problem that seemed trivial to me at first but which I currently 
can't solve.

I'm writing an application which creates a SIP channel. It should mimic 
another original channel as that on is hung up. By "mimic" I mean that 
channel should get the same context, extension, priority.

This works fine by setting the appropiate channel variables, and when I call 
ast_pbx_start it works as expected.

However SIP transfers don't work any more because it seems sip_pvt has its own 
context and exten variables and uses these ones in the transfer.

So I thought, "well, I just need to set those variables", but there doesn't 
seem to be a way to do this: there doesn't seem to be a callback that I can 
use to do this and since chan_sip.c is just one monolithic C file with no 
header file I can't set that variable directly as I can't get the layout of 
struct sip_pvt.

Have I missed something so far ?

If not, I see two ways of overcoming this problem: the first would be to 
implement setting the context/exten from the outside, the second would be to 
use the context/exten of the owning channel.

So what's the reason for sip_pvt to include the context and exten variables ? 
Why not use the ones from the owning channel ?

C'ya,
	Marc

-- 
Marc Haisenko
Comdasys AG

Rüdesheimer Straße 7
D-80686 München
Tel:   +49 (0)89 - 548 43 33 0
Fax:   +49 (0)89 - 548 43 33 29
e-mail: haisenko at comdasys.com
http://www.comdasys.com