<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt">hi Markus,<br>how do you determine if it's a complete number? Do you expect the outgoing ISDN channel to tell you that?<br><br>I also wonder what happens if you attach an ISDN-SIP gateway, like Patton. Will you have a new SIP message (which?) on every dialed digit?<br><br><br><div><br></div> <div style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"> <div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"> <div dir="ltr"> <hr size="1"> <font face="Arial" size="2"> <b><span style="font-weight:bold;">From:</span></b> Markus Müller <freeswitchdev@priv.de><br> <b><span style="font-weight: bold;">To:</span></b> freeswitch-dev@lists.freeswitch.org <br> <b><span style="font-weight: bold;">Sent:</span></b> Saturday, September 7, 2013 1:52 PM<br> <b><span style="font-weight:
bold;">Subject:</span></b> [Freeswitch-dev] Call relaying (ISDN <> Freeswitch <> ISDN)<br> </font> </div> <div class="y_msg_container"><br>Hello Freeswitch Developers,<br><br>ISDN in germany (maybe also somewhere else) has a feature, which colides<br>with the design of a dialplan: it sends the numbers the user types into<br>his phone LIVE (!) through the ISDN network. If the number is complete,<br>the ISDN network tells it to the caller; Only now the call get<br>established (means the dialplan gets invoked). So you have to do an own<br>step (live and interactive determination of the number) BEFORE the<br>dialplan comes in line.<br><br>Because this is object not supported by freeswith, in the following<br>situation<br><br>User <-> Analog Phone <-> Siemens Hipath <-> ISDN <-> [FreeTDM <-><br>Freeswitch <-> FreeTDM] <-> ISDN <-> World <-> ISDN Destiation<br><br>you have to do "overlap
dialing". Means, freeswitch waits some seconds<br>until the user has entered the last number and then it goes directly to<br>the dialplan.<br><br>-> This is not what I need!<br><br>I want that it works as if there is no FreeSwitch in between. Means,<br>freeswitch should relay each number the user types into his phone to the<br>ISDN on the remote side, and make the dialplan stuff AFTER the number<br>has been dicovered for completeness.<br><br>How do you think this should be implemented? If nobody has an object, I<br>would code this the following way into FreeTDM: If I get a call with a<br>starting number I know that it must go to the external ISDN (means: a<br>second dialplan), I first relay the typed numbers and determine the full<br>number. Only now, when I got the full number, I would give this call to<br>the higher layers.<br><br>What you think about this?<br><br>Regards,<br>Markus
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