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<DIV><FONT face=Arial>Dear freeswitch support </FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial>As you suggested, I have completed the
ISUP<->SIP-T conversion work. While there are some problems to
integrate my code to freeswitch.</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>1. I got one sangoma license and can
bridge the freetmd to sofia now. But how can I intercept the ISUP
mesasge(from the freetdm) and run to my application and then to
Sofia module? Is there any external control like ESL to do the work? The
diagram is like:</FONT></DIV>
<DIV><FONT face=Arial> </FONT></DIV>
<DIV><FONT
face=Arial> SIP-T
ISUP</FONT></DIV>
<DIV><FONT
face=Arial>
SofiaModule<-------------My
Conversion---------------------->freetdm</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>2. I have been working with ESL "SEND"
command to control the Sofia module, while it needs to divide the
conversion SIP-T message. Is there anyway to put the one whole SIP-T
message to Sofia module to handle? like one external SIP-T message to
freeswitch?</FONT></DIV>
<DIV><FONT face=Arial>And vice versa, Is there good way to receive the
whole SIP message from sofia module instead of using ESL to detect the
SIP message info?</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Appreciated your comments.</FONT></DIV>
<DIV><FONT face=Arial>Windy</FONT></DIV></FONT>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial> </FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>======== 2013-03-25 06:55:07 Original
Message： ========</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>
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<DIV dir=ltr>On Sun, Mar 24, 2013 at 9:43 AM, <A
href="mailto:xiaofengcanyuexp@163.com">xiaofengcanyuexp@163.com</A>
<SPAN dir=ltr><<A href="mailto:xiaofengcanyuexp@163.com"
target=_blank>xiaofengcanyuexp@163.com</A>></SPAN> wrote:<BR>
<DIV class=gmail_extra>
<DIV class=gmail_quote>
<BLOCKQUOTE
style="BORDER-LEFT: rgb(204,204,204) 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex"
class=gmail_quote><BR>Dear freeswitch support<BR><BR>I have
been studying freeswitch for a few weeks. I will be planning
to take the freeswitch as a signal gateway connecting
PSTN(ISUP) and SIP.<BR>It needs convert the ISUP to SIP based
on RFC3372/RFC3204/RFC3398 and vice versa.<BR>I notice
in the mime_type.cfg supporting applicaiton/ISUP, but I don't
find any code in sofia(SIP) module to decode/encode the
application/ISUP.<BR>My question is: Does freeswitch support
to do the signalling gateway connecting ISUP(freeTDM module
also has the MTP layer support) and SIP(SIP-T/SIP-I)? If yes,
could you let me know how it works?<BR><BR></BLOCKQUOTE>
<DIV><BR></DIV>
<DIV>Hello Windy,</DIV>
<DIV><BR></DIV>
<DIV>There is no support in FreeSWITCH for SIP-I or SIP-T</DIV>
<DIV><BR></DIV>
<DIV>ISUP to SIP conversion is supported using Sangoma's SS7
module based on Trillium SS7 stack. Note this is licensed, not
open source (this is true for all the MTP layers and ISUP, SCCP
etc).</DIV>
<DIV><BR></DIV>
<DIV>Sangoma uses a raw/proprietary mechanism to pass-thru
complete IAM messages in a SIP network, it is a crude embedding
of the IAM message encoded using base64, within SIP header. We
are aware this is crude and by far does not cover all cases, but
it was done as quick and dirty way to avoid implementing the
whole SIP-I/SIP-T spec and at the same time not miss any IAM
information. </DIV>
<DIV><BR></DIV>
<DIV>In all honesty we've had not seen many requests for it so
that has kept us from doing the implementation work.</DIV>
<DIV><BR></DIV>
<DIV>Cheers,</DIV>
<DIV><BR clear=all>
<DIV>
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<DIV>
<P><FONT size=2 face=宋体><FONT size=3 face=Arial>= = = = = = = = = = = =
= = = = = = = = = =</FONT> </FONT></P>
<P><FONT face=Arial>Thanks</FONT></P>
<P><FONT face=Arial>Windy</FONT></P>
<DIV> </DIV>
<DIV><FONT size=2 face=宋体> </FONT></DIV>
<DIV><FONT size=2 face=宋体><FONT size=2
face=宋体> </FONT></FONT></DIV>
<DIV><FONT size=2 face=宋体> </FONT></DIV>
<DIV> </DIV></DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE></FONT></DIV>
<DIV>
<P><FONT size=2 face=宋体><FONT size=3 face=Arial>= = = = = = = = = = = = = = = =
= = = = = =</FONT> </FONT></P>
<P><FONT face=Arial>Thanks</FONT></P>
<P><FONT face=Arial>Windy</FONT></P>
<DIV> </DIV>
<DIV><FONT size=2 face=宋体> </FONT></DIV>
<DIV><FONT size=2 face=宋体><FONT size=2
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