[asterisk-dev] AST_FRAME_DIGITAL

Klaus Darilion klaus.mailinglists at pernau.at
Wed Sep 12 10:45:26 CDT 2007


Russell Bryant schrieb:
> Christian wrote:
>> I vote for AST_FRAME_DIGITAL too! I think i suggested that about over 
>> one year already..  It would be very useful to transport Digital Data 
>> like HDLC Frames which might occur in the media channel of chan_zap and 
>> chan_misdn. At the moment such data would be sent with AST_FRAME_VOICE 
>> which is not appropriate.
> 
> I will not argue that such a thing would not be useful.  However, I want to be
> _very_ strict about what it could be used for.  In the context of this thread,
> where the stream is actually voice and video, it is absolutely not appropriate.

Hi Russel!

What about another way to implement DIGITAL calls inside Asterisk. I 
could add a voice codec called AST_FORMAT_DIGITAL. As there will be no 
codec_digital Asterisk does only support pass through of 
AST_FORMAT_DIGITAL. This would be a compromise - no new frame type - 
just a certain codec to prevent that digital calls will be treated as 
u/alaw with potential transcoding problems.

regards
klaus



More information about the asterisk-dev mailing list