To understand this a little better. Is MP2 over data channel a standard that needs to be interoperated with? Is there details how this is signalled to the other side or are both sides just configured to support it?
On Jan 5, 2015, at 1:06 PM, Michael Jerris <mike@jerris.com> 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@virtues.net <mailto:auge@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@virtues.net <mailto:auge@virtues.net> <mailto:auge@virtues.net <mailto:auge@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@virtues.net <mailto:auge@virtues.net> <mailto:auge@virtues.net <mailto:auge@virtues.net>> <mailto:auge@virtues.net <mailto:auge@virtues.net><mailto:auge@virtues.net <mailto:auge@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