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<p class=MsoNormal><span style='color:#1F497D'>Anyone for this ?</span><span
style='color:#1F497D'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b>On Behalf Of </b>Ujjval
Karihaloo<br>
<b>Sent:</b> Monday, October 05, 2009 11:02 PM<br>
<b>To:</b> asterisk-users@lists.digium.com<br>
<b>Subject:</b> [asterisk-users] T38 REINVITe issue<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hi<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal> My call flow is <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>T38 static IP gateway <span style='font-family:Wingdings'>à</span>
Asterisk <span style='font-family:Wingdings'>à</span> Sip Provider<span
style='font-family:Wingdings'>à</span> PSTN<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Call is placed in reverse direction - from PSTN to T38
Gateway.<o:p></o:p></p>
<p class=MsoNormal>T38 GW reinvites with T38, and asterisk passes it along to
the SIP provider. The SIP provider challenges it and asterisk reponds to the
Challenge with INVITE with Auth credentials…however, the Asterisk changes the
SDP and replaces the T38 info in SDP with G711uLaw….and fax fails. How do I
configure the host entry in users.conf such that it maintains the T38 reinvite
as it responds to the SIP INVITE challenge from the Sip Provider.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Her eis my users.conf entry for Asterisk registration to the
Sip Provider. (I know I don’t have T38 as allowed codecs, not sure what to add
for T38)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>[trunk_66]<o:p></o:p></p>
<p class=MsoNormal>;register <o:p></o:p></p>
<p class=MsoNormal>allow = ulaw<o:p></o:p></p>
<p class=MsoNormal>dialformat = ${EXTEN:1}<o:p></o:p></p>
<p class=MsoNormal>canreinvite = no<o:p></o:p></p>
<p class=MsoNormal>hasexten = no<o:p></o:p></p>
<p class=MsoNormal>hasiax = no<o:p></o:p></p>
<p class=MsoNormal>hassip = yes<o:p></o:p></p>
<p class=MsoNormal>host = provider.com<o:p></o:p></p>
<p class=MsoNormal>insecure = very<o:p></o:p></p>
<p class=MsoNormal>port = 5060<o:p></o:p></p>
<p class=MsoNormal>registeriax = no<o:p></o:p></p>
<p class=MsoNormal>registersip = yes<o:p></o:p></p>
<p class=MsoNormal>trunkname = abc<o:p></o:p></p>
<p class=MsoNormal>username = abc<o:p></o:p></p>
<p class=MsoNormal>disallow = gsm,g726,alaw<o:p></o:p></p>
<p class=MsoNormal>contact = abc<o:p></o:p></p>
<p class=MsoNormal>secret = abc<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any ideas appreciated.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thx<o:p></o:p></p>
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