[Freeswitch-users] MP2

[Thomas Auge]

Then "unrestricted digital" is still a voice channel? I'm completely clueless as to how this works on the ISDN side of 
things, I'm just assuming that any codec would work, because else the "unrestricted-digital-codec" option wouldn't make 
sense. :)

I assumed it was a data connection, because some of the hardware boxes offer 2-channel bonding on BRIs (an option, we're 
also exploring with FreeTDM) and the only way to do this I know of is through a data connection.



On 05.01.2015 15:06, Michael Jerris wrote:
> When g722 is used over isdn, it is a voice channel marked as g722, NOT a data channel with voice codec data.
>
>> On Jan 2, 2015, at 5:20 PM, Thomas Auge <auge at virtues.net <mailto: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><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<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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