<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">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?<div class=""><br class=""><div><blockquote type="cite" class=""><div class="">On Jan 5, 2015, at 1:06 PM, Michael Jerris <<a href="mailto:mike@jerris.com" class="">mike@jerris.com</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta http-equiv="Content-Type" content="text/html charset=us-ascii" class=""><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">When g722 is used over isdn, it is a voice channel marked as g722, NOT a data channel with voice codec data.<div class=""><br class=""><div class=""><blockquote type="cite" class=""><div class="">On Jan 2, 2015, at 5:20 PM, Thomas Auge <<a href="mailto:auge@virtues.net" class="">auge@virtues.net</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">There are ISDN devices which establish a digital (data) ISDN connection and then use all kinds of codecs on top of that.<span class="Apple-converted-space"> </span></span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">Think FreeTDM with G722 - same thing. As far as I know FreeTDM doesn't care which codec you choose for a digital<span class="Apple-converted-space"> </span></span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">connection. G722 is just the most common use case.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">MP2 is still a widely used standard in broadcast, i.e. for remote contributions.</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">On 02.01.2015 19:08, Brian West wrote:</span><br style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=""><blockquote type="cite" style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px;" class="">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<br class="">working with that require this? Trying to fully understand your thought process and needs.<br class=""><br class="">On Fri, Jan 2, 2015 at 4:04 PM, Thomas Auge <<a href="mailto:auge@virtues.net" class="">auge@virtues.net</a><span class="Apple-converted-space"> </span><<a href="mailto:auge@virtues.net" class="">mailto:auge@virtues.net</a>>> wrote:<br class=""><br class=""> Digital ISDN calls, so I think as far as freeswitch is concerned, voice calls, yes.<br class=""><br class=""><br class=""> On 02.01.2015 18:52, Brian West wrote:<br class=""><blockquote type="cite" class="">In what context? playing sound files, voice calls what?<br class=""><br class="">On Fri, Jan 2, 2015 at 3:49 PM, Thomas Auge <<a href="mailto:auge@virtues.net" class="">auge@virtues.net</a><span class="Apple-converted-space"> </span><<a href="mailto:auge@virtues.net" class="">mailto:auge@virtues.net</a>> <<a href="mailto:auge@virtues.net" class="">mailto:auge@virtues.net</a><<a href="mailto:auge@virtues.net" class="">mailto:auge@virtues.net</a>>>> wrote:<br class=""><br class=""> Hello list,<br class=""><br class=""> would it be a big task to add mp2 (transcoding) to freeswitch? What would be a realistic bounty for it?<br class=""><br class=""> Cheers!<br class=""><br class=""> Thomas<br class=""></blockquote></blockquote></div></blockquote></div><br class=""></div></div></div></blockquote></div><br class=""></div></body></html>