[asterisk-dev] AST_FRAME_DIGITAL

Sergio Garcia Murillo sergio.garcia at fontventa.com
Fri Sep 14 08:45:05 CDT 2007


----- Original Message ----- 
From: "Tony Mountifield" <tony at softins.clara.co.uk>
To: <asterisk-dev at lists.digium.com>
Sent: Friday, September 14, 2007 3:06 PM
Subject: Re: [asterisk-dev] AST_FRAME_DIGITAL


> In article <003201c7f596$e6827f80$800101df at VALINOR>,
> Sergio Garcia Murillo <sergio.garcia at fontventa.com> wrote:
> > 
> > Just cheking q931 bearer capability:
> > 
> > pri debug span 1
> > Bearer Capability (len= 3)
> >  Ext: 1  Q.931 Std: 0  Info transfer capability:
> >          Unrestricted digital information (8)
> >  Ext: 1  Trans mode/rate: 64kbps, circuit-mode (16)
> >  Ext: 1  User information layer 1: H223/H245 data (38)
> 
> Was one of the original posts in this thread suggesting that a frame
> such as the above was being treated by Asterisk as G.711 speech?
> 
> If so, surely that is wrong, and the frame/call should be rejected,
> until such time as the proper handling is designed and implemented.
> 
If I'll have to wait untill everything is designed, planned, scheduled,
then I don't think we won't have it implemented ever.
The funy thing is that everything is already working, except for the
tiny detail that we think that we shoul be able to get the correct 
format of the data so we dn't have to be doing a bit of hacking and
use ulaw or alaw to trnasport the data from the channel to the application.
Aslo a patch for correct handling of user information layer 1 in chan_zap
was done by klaus a few months ago, but still not done into the main source
code (I think).
So instead of waiting for nothing to happen, I'd preffered to start the 
implementation with the current state of art, and try to push for the 
changes needed to handle everything correctly, and they may even 
probably mean that I have to recode much parts of my code.
But once again, I like to do things and make things happen, even if
they are not done in the *correct* way. 

Best regards
Sergio



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