Likely, you wont get full call setup, but you could see the inital setup message. Alternatively, there is a way that you can setup some cards passive and you can tap and listen, depends on the hardware.
On Jan 5, 2015, at 1:49 PM, Thomas Auge <auge@virtues.net> wrote:
These are hardware boxes. Can I capture the data with another ISDN card on the same BRI?
On 05.01.2015 15:38, Michael Jerris wrote:
For any hope to achieve this we are going to needs some more info... preferably in the way of specifications. It's maybe possible if you can capture the isdn traffic from working equipment using this that you could decode it (Wireshark does a decent job of this) and see what exactly its signaling.
On Jan 5, 2015, at 1:34 PM, Thomas Auge <auge@virtues.net> wrote:
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?
Unfortunately I don't know. I didn't know there were multiple approaches to this. The currently implemented G722 method works with these boxes, so the assumption was it's all the same with other codecs. If a data channel is not a common method to achieve this, then it's most likely not what they are doing.
On Jan 5, 2015, at 1:06 PM, Michael Jerris <mike@jerris.com <mailto: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>> 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>>> >> 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 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 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 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 http://lists.freeswitch.org/mailman/listinfo/freeswitch-users UNSUBSCRIBE:http://lists.freeswitch.org/mailman/options/freeswitch-users http://www.freeswitch.org