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<p>Hi Bote, </p>
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<p>Extension B sends a REFER event to FS that responds with a 202 Accepted and after a NOTIFY.</p>
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<p>I guess it is the same as using dialplan with att_xfer.</p>
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<p style="line-height:18px; color:rgb(34,34,34); font-family:arial,sans-serif">Alex.</p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" color="#000000" style="font-size:11pt"><b>De:</b> freeswitch-users-bounces@lists.freeswitch.org <freeswitch-users-bounces@lists.freeswitch.org> em nome de Bote Man <bote_radio@botecomm.com><br>
<b>Enviado:</b> terça-feira, 29 de março de 2016 15:04<br>
<b>Para:</b> 'FreeSWITCH Users Help'<br>
<b>Assunto:</b> Re: [Freeswitch-users] Attended Transfer with one-way audio</font>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">What does the Flash key do in SIP?</span></p>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D"> </span></p>
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<span style="font-size:11.0pt; font-family:"Calibri","sans-serif"; color:#1F497D">Bote</span></p>
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<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""> Alex Pierry<br>
<b>Sent:</b> Tuesday, 29 March, 2016 08:25<br>
<b>To:</b> freeswitch-users@lists.freeswitch.org<br>
<b>Subject:</b> [Freeswitch-users] Attended Transfer with one-way audio</span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black">Hi All,</span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black"> </span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black">I'm facing a strange behaviour in FS after a Attended Transfer.</span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black">For the A leg listen the C leg, C needs to press some DTMF key. Otherwise only C leg can listen A leg.</span></p>
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<span style="font-family:"Calibri","sans-serif"; color:#1F497D">…</span><span style="font-family:"Calibri","sans-serif"; color:black"></span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black">An important point is that all transfers are made pressing "Flash" key in SIP Phone not by att_xfer in Dialplan.</span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black"> </span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black">So, any clue to start?</span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black">Thank you,</span></p>
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<span style="font-family:"Calibri","sans-serif"; color:black">Alex.</span></p>
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