asterisk users - Sep 2009 - How to get "Call-ID" SIP header outside "chan_sip" scope ...

Hello there!

I'm working on some modifications on Asterisk to adapt it to our needs 
considering some particular demandings of the infraestructure we want to 
provide.
Two of these modifications are:

1- A proprietary configuration driver that will communicate with a 
server that will be the source of information for the entire 
infraestructure; and,
2- A call control application that will be responsible for call timing 
control and pre-paid support;

Here we are prioritizing internal modifications and loadable modules 
(like modules, applications, etc) against external AGI components to 
acchieve the best performance possible for the entire solution.

One problem we have here is to find out the best option (even one that 
results on some internal Asterisk files changing) that allow us to 
propagate the SIP header "Call-ID" to both modules described above.
The best shot we have until now is to use the "callid" field from the 
"sip_pvt" structure of SIP channel, what will lead us to two 
considerable code changes: 1- Propagate the channel to method 
"realtime_var_get" of our proprietary ARA driver; and 2- Duplication
of
necessary structs to a header (".h") file so the modules can
"navigate"
on private structure "sip_pvt".
The first change isn't big deal. But the need of validation of the 
second modification, every time we make a merge with updated codes is 
concerning me a lot.

Does anyone have a better approach to get this done ?

Thanks and best regards,

-- 
__At.,
   _
 
*Technology and Quality on Information*
Mauro S?rgio Ferreira Brasil
Coordenador de Projetos e Analista de Sistemas
+ mauro.brasil at tqi.com.br <mailto:@tqi.com.br>
: www.tqi.com.br <http://www.tqi.com.br>
( + 55 (34)3291-1700
( + 55 (34)9971-2572

Hello there!

I really hate when this happens, but...
It seems channel variable "SIPCALLID" will have the info I need, so
the
changes will be reduced to propagate the channel to ARA driver method 
"realtime_var_get".

If someone have any additional info, or can indicate some problem on 
using this variable, please let me know.

Thanks and best regards,
Mauro.




Mauro Sergio Ferreira Brasil escreveu:
> Hello there!
>
> I'm working on some modifications on Asterisk to adapt it to our needs 
> considering some particular demandings of the infraestructure we want to 
> provide.
> Two of these modifications are:
>
> 1- A proprietary configuration driver that will communicate with a 
> server that will be the source of information for the entire 
> infraestructure; and,
> 2- A call control application that will be responsible for call timing 
> control and pre-paid support;
>
> Here we are prioritizing internal modifications and loadable modules 
> (like modules, applications, etc) against external AGI components to 
> acchieve the best performance possible for the entire solution.
>
> One problem we have here is to find out the best option (even one that 
> results on some internal Asterisk files changing) that allow us to 
> propagate the SIP header "Call-ID" to both modules described
above.
> The best shot we have until now is to use the "callid" field from
the
> "sip_pvt" structure of SIP channel, what will lead us to two 
> considerable code changes: 1- Propagate the channel to method 
> "realtime_var_get" of our proprietary ARA driver; and 2-
Duplication of
> necessary structs to a header (".h") file so the modules can
"navigate"
> on private structure "sip_pvt".
> The first change isn't big deal. But the need of validation of the 
> second modification, every time we make a merge with updated codes is 
> concerning me a lot.
>
> Does anyone have a better approach to get this done ?
>
> Thanks and best regards,
>
>   
-- 
__At.,
   _
 
*Technology and Quality on Information*
Mauro S?rgio Ferreira Brasil
Coordenador de Projetos e Analista de Sistemas
+ mauro.brasil at tqi.com.br <mailto:@tqi.com.br>
: www.tqi.com.br <http://www.tqi.com.br>
( + 55 (34)3291-1700
( + 55 (34)9971-2572