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<p class=MsoNormal><span style='color:#1F497D'>I find it hard to believe no one
knows, so is it just plain no helping? </span><span style='font-family:Wingdings;
color:#1F497D'>J</span><span style='color:#1F497D'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>If someone would like to atleast
point me in the right direction that will deal specifically with what I’m
asking, that would be appreciated too.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Much thanks.<o:p></o:p></span></p>
<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"'> Mark Hamilton
[mailto:mark.h@cage151.com] <br>
<b>Sent:</b> April 7, 2008 11:48 AM<br>
<b>To:</b> 'Asterisk Users Mailing List - Non-Commercial Discussion'<br>
<b>Subject:</b> DTMF between Asterisk servers.<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Hello, <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m a little confused on DTMF.<o:p></o:p></p>
<p class=MsoNormal>A sip peer is registered on two Asterisk servers. No
dtmfmode is set for them, the sip peer is 999 on Asterisk 1 and 999 on Asterisk
2. They both register on each other.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>A call comes in on Asterisk server 1, provider 1,
dtmf=inband. Then the call is transferred to Asterisk 2:<o:p></o:p></p>
<p class=MsoNormal>RetryDial(/var/lib/asterisk/sounds/connecting,15,10,SIP/12351@65.xx.xx.10,,tT,)<o:p></o:p></p>
<p class=MsoNormal>Where 12351 accepts the call on Asterisk 2, and in some
cases, that call is transferred out to a PSTN number, or wherever, but not
within Asterisk anymore via provider2, dtmf=rfc2833.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>When the call comes in, I’d like it to relay DTMF just
dandy. How can I do so?<o:p></o:p></p>
<p class=MsoNormal>There is no NAT between the Asterisk servers or in front of
them. However, Asterisk2 has iptables which allows all UDP traffic to/fro
Asterisk1. When Asterisk2 transfers the call to external endpoints, there might
be a LAN, but relative ports are open on those LANs.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Please help.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks in advance,<o:p></o:p></p>
<p class=MsoNormal>Mark.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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