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.
Yup. I'm fairly certain that's what FreeTDM does for G722, else it wouldn't make much sense to have a codec configuration option. :)
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.
There are a couple, T(w/o)oLame comes to mind. (http://www.twolame.org/ LGPL licensed) Any pointers as to which capabilities are needed in such a library? It seems the libraries are as outdated as the codec. :)
On Fri, Jan 2, 2015 at 4:20 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 > > > > _________________________________________________________________________ > > Professional FreeSWITCH Consulting Services: > > consulting@freeswitch.org <mailto:consulting@freeswitch.org> <mailto:consulting@freeswitch.org <mailto:consulting@freeswitch.org>> <mailto:consulting@freeswitch.org <mailto:consulting@freeswitch.org> > <mailto:consulting@freeswitch.org <mailto:consulting@freeswitch.org>>> > >http://www.freeswitchsolutions.com > > > > Official FreeSWITCH Sites > >http://www.freeswitch.org > >http://confluence.freeswitch.org > >http://www.cluecon.com > > > > FreeSWITCH-users mailing list > >FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> <mailto:FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org>> > <mailto:FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> <mailto:FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org>>> > >http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > >http://www.freeswitch.org > > > > > > > > > > -- > > > > */Brian West/* > > brian@freeswitch.org <mailto:brian@freeswitch.org> <mailto:brian@freeswitch.org <mailto:brian@freeswitch.org>> <mailto:brian@freeswitch.org <mailto:brian@freeswitch.org> <mailto:brian@freeswitch.org <mailto:brian@freeswitch.org>>> > > > > > > */Twitter: @FreeSWITCH , @briankwest/* > >http://www.freeswitchbook.com > >http://www.freeswitchcookbook.com > > > > *T:*+19184209001 <tel:%2B19184209001> <tel:%2B19184209001> | *F:*+19184209002 <tel:%2B19184209002> <tel:%2B19184209002> | *M:*+1918424WEST (9378) > > *iNUM:*+883 5100 1420 9001 <tel:%2B883%205100%201420%209001> <tel:%2B883%205100%201420%209001> | *ISN:*410*543 | *Skype:*briankwest > > > > > > > > _________________________________________________________________________ > > Professional FreeSWITCH Consulting Services: > > consulting@freeswitch.org <mailto:consulting@freeswitch.org> <mailto:consulting@freeswitch.org <mailto:consulting@freeswitch.org>> > > http://www.freeswitchsolutions.com > > > > Official FreeSWITCH Sites > > http://www.freeswitch.org > > http://confluence.freeswitch.org > > http://www.cluecon.com > > > > FreeSWITCH-users mailing list > > FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> <mailto:FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org>> > > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > > http://www.freeswitch.org > > > > > _________________________________________________________________________ > Professional FreeSWITCH Consulting Services: > consulting@freeswitch.org <mailto:consulting@freeswitch.org> <mailto:consulting@freeswitch.org <mailto:consulting@freeswitch.org>> > http://www.freeswitchsolutions.com > > Official FreeSWITCH Sites > http://www.freeswitch.org > http://confluence.freeswitch.org > http://www.cluecon.com > > FreeSWITCH-users mailing list > FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> <mailto:FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org>> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org > > > > > -- > > */Brian West/* > brian@freeswitch.org <mailto:brian@freeswitch.org> <mailto:brian@freeswitch.org <mailto:brian@freeswitch.org>> > > > */Twitter: @FreeSWITCH , @briankwest/* > http://www.freeswitchbook.com > http://www.freeswitchcookbook.com > > *T:*+19184209001 <tel:%2B19184209001> | *F:*+19184209002 <tel:%2B19184209002> | *M:*+1918424WEST (9378) > *iNUM:*+883 5100 1420 9001 <tel:%2B883%205100%201420%209001> | *ISN:*410*543 | *Skype:*briankwest > > > > _________________________________________________________________________ > Professional FreeSWITCH Consulting Services: > consulting@freeswitch.org <mailto:consulting@freeswitch.org> > http://www.freeswitchsolutions.com > > Official FreeSWITCH Sites > http://www.freeswitch.org > http://confluence.freeswitch.org > http://www.cluecon.com > > FreeSWITCH-users mailing list > FreeSWITCH-users@lists.freeswitch.org <mailto:FreeSWITCH-users@lists.freeswitch.org> > http://lists.freeswitch.org/mailman/listinfo/freeswitch-users > UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users > http://www.freeswitch.org >
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