[Freeswitch-users] Adding headers to INFO messages for Advice of Charge on SNOM

[Michael Jerris]

Is there any rfc on this or is it something that snom just made up?


On Nov 23, 2009, at 3:00 AM, Keith Laaks wrote:

> 
> 
> 
> Hi,
> 
> I have tried maintaining charging information on a SNOM 300's display
> using 'display' - but found that the phone has some timer, whereby every
> 60 seconds it wipes out whatever happens to be on the display at that
> time and replaces is with the dialled number. So not a viable option as
> it impacts usability. Really annoying when the display was just updated 
> with valuable information for the user and a split second later it gets
> replaced. 
> [If somebody knows how to disable this behaviour - please do tell...] 
> 
> I see that SNOM supports a number of features for Advice of Charge.
> 
>> From their Wiki: 
> 
> http://wiki.snom.com/Advice_of_charge_%28AOC%29_in_SIP
> Example of an SIP-Info Message:
> 
> -----------------------------------------------------
> INFO sip:bla at snom.com SIP/2.0
> From: <biller at snom.com>;tag=5354n3
> To: <ua at snom.com>;tag=33rfh3
> CSeq: 23423 INFO
> Call-ID: 3452tw43dt354dm03
> AOC: charging;state=active;
> charging-info=currency;
> currency=EUR;
> amount=2000;
> multiplier=0.001
> Content-Length: 0
> ----------------------------------------------------- 
> 
> So the question - Is there some method available today to add these additional
> 'new' headers to an INFO message I can send out to these phones?
> 
> If not, I guess it's a matter of looking at enhancing the "case SWITCH_MESSAGE_INDICATE_DISPLAY" section in mod_sofia.c ?
>