[Freeswitch-users] MP2

[Brian West]

G722 can be a native bearer capability on an ISDN b-channel but thats not
widely used.  MP2 in your case is just establishing a data channel be it
via ISDN or IP.

Before proceeding I would seek out a license compatible encoder/decoder
library that can be used, MP2 can mean so many things their are multiple
levels, options and details required to properly implement it.  I highly
suspect its not an afternoon event, I could be wrong if the right library
is found thats license compatible.


On Fri, Jan 2, 2015 at 4:20 PM, Thomas Auge <auge at virtues.net> wrote:

> There are ISDN devices which establish a digital (data) ISDN connection
> and then use all kinds of codecs on top of that.
> Think FreeTDM with G722 - same thing. As far as I know FreeTDM doesn't
> care which codec you choose for a digital
> connection. G722 is just the most common use case.
>
> MP2 is still a widely used standard in broadcast, i.e. for remote
> contributions.
>
> On 02.01.2015 19:08, Brian West wrote:
> > I'm still puzzled as to why mp2, since ISDN is native PCM (ulaw/alaw),
> Do you have some legacy files or systems you're
> > working with that require this?  Trying to fully understand your thought
> process and needs.
> >
> > On Fri, Jan 2, 2015 at 4:04 PM, Thomas Auge <auge at virtues.net <mailto:
> auge at virtues.net>> wrote:
> >
> >     Digital ISDN calls, so I think as far as freeswitch is concerned,
> voice calls, yes.
> >
> >
> >     On 02.01.2015 18:52, Brian West wrote:
> >     > In what context?  playing sound files, voice calls what?
> >     >
> >     > On Fri, Jan 2, 2015 at 3:49 PM, Thomas Auge <auge at virtues.net
> <mailto:auge at virtues.net> <mailto:auge at virtues.net <mailto:
> auge at virtues.net>>> wrote:
> >     >
> >     >     Hello list,
> >     >
> >     >     would it be a big task to add mp2 (transcoding) to freeswitch?
> What would be a realistic bounty for it?
> >     >
> >     >     Cheers!
> >     >
> >     >     Thomas
> >     >
> >     >
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-- 

*Brian West*
brian at freeswitch.org


*Twitter: @FreeSWITCH , @briankwest*
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