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<p class=MsoNormal>Hello, I am having a problem with getting call transfer to
work.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>This is what is happening:-<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>1)<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>External call comes in on SIP from a DDI provider<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>2)<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>The call is answered by extension 204<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>3)<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Then extension 204 presses the Xfer button and the call
is placed on hold<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>4)<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Extension 204 calls extension 201 and speaks to them.<o:p></o:p></p>
<p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo2'><![if !supportLists]><span
style='mso-list:Ignore'>5)<span style='font:7.0pt "Times New Roman"'>
</span></span><![endif]>Extension 204 presses the xfer button again to complete
the transfer.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The result is that the caller is cut off and the SIP Debug
in asterisk shows the following:-<o:p></o:p></p>
<p class=MsoNormal>SIP/2.0 481 Call leg/transaction does not exist<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Below is a clip from the debug list.<o:p></o:p></p>
<p class=MsoNormal><br>
I would greatly appreciate any help as the client is getting annoyed.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Regards<o:p></o:p></p>
<p class=MsoNormal>Dan<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><------------><o:p></o:p></p>
<p class=MsoNormal> -- Packet2Packet bridging
SIP/winsor_204-12cb4160 and SIP/winsor_201-12ca50b0<o:p></o:p></p>
<p class=MsoNormal>sip1*CLI><o:p></o:p></p>
<p class=MsoNormal><--- SIP read from 94.193.81.135:49160 ---><o:p></o:p></p>
<p class=MsoNormal>ACK sip:201@83.222.226.126 SIP/2.0<o:p></o:p></p>
<p class=MsoNormal>Via: SIP/2.0/UDP 94.193.81.135:49160;branch=z9hG4bK-9ba5b149<o:p></o:p></p>
<p class=MsoNormal>From: "Rachael" <sip:winsor_204@sip1.keshercommunications.com>;tag=127e2c656448055eo0<o:p></o:p></p>
<p class=MsoNormal>To: "Robert"
<sip:201@sip1.keshercommunications.com>;tag=as1db0f5fd<o:p></o:p></p>
<p class=MsoNormal>Call-ID: 5060f231-68791a02@94.193.81.135<o:p></o:p></p>
<p class=MsoNormal>CSeq: 102 ACK<o:p></o:p></p>
<p class=MsoNormal>Max-Forwards: 70<o:p></o:p></p>
<p class=MsoNormal>Proxy-Authorization: Digest
username="winsor_204",realm="asterisk",nonce="24eede11",uri="sip:201@83.222.226.126",algorithm=MD5,response="a3b443415fd656ce42253002548a823a"<o:p></o:p></p>
<p class=MsoNormal>Contact: "Rachael"
<sip:winsor_204@94.193.81.135:49160><o:p></o:p></p>
<p class=MsoNormal>User-Agent: Sipura/SPA921-4.1.10(b)<o:p></o:p></p>
<p class=MsoNormal>Content-Length: 0<o:p></o:p></p>
<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>--- (11 headers 0 lines) ---<o:p></o:p></p>
<p class=MsoNormal>sip1*CLI><o:p></o:p></p>
<p class=MsoNormal><--- SIP read from 94.193.81.135:49160 ---><o:p></o:p></p>
<p class=MsoNormal>REFER sip:901617720007@83.222.226.126 SIP/2.0<o:p></o:p></p>
<p class=MsoNormal>Via: SIP/2.0/UDP 94.193.81.135:49160;branch=z9hG4bK-5479aeea<o:p></o:p></p>
<p class=MsoNormal>From:
<sip:winsor_204@94.193.81.135:49160>;tag=f2c2287b333442fi0<o:p></o:p></p>
<p class=MsoNormal>To: "01617720007"
<sip:901617720007@83.222.226.126>;tag=as2eb45d54<o:p></o:p></p>
<p class=MsoNormal>Referred-By: "Rachael"
<sip:winsor_204@sip1.keshercommunications.com><o:p></o:p></p>
<p class=MsoNormal>Call-ID: 15dcfde333cdaf86302cb6490b04d745@83.222.226.126<o:p></o:p></p>
<p class=MsoNormal>CSeq: 102 REFER<o:p></o:p></p>
<p class=MsoNormal>Max-Forwards: 70<o:p></o:p></p>
<p class=MsoNormal>Contact: "Rachael" <sip:winsor_204@94.193.81.135:49160><o:p></o:p></p>
<p class=MsoNormal>efer-To:
<sip:201@83.222.226.126?Replaces=5060f231%2D68791a02%4010%2E0%2E0%2E204%3Bfrom-tag%3D127e2c656448055eo0%3Bto-tag%3Das1db0f5fd><o:p></o:p></p>
<p class=MsoNormal>User-Agent: Sipura/SPA921-4.1.10(b)<o:p></o:p></p>
<p class=MsoNormal>Content-Length: 0<o:p></o:p></p>
<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>--- (12 headers 0 lines) ---<o:p></o:p></p>
<p class=MsoNormal>Call 15dcfde333cdaf86302cb6490b04d745@83.222.226.126 got a
SIP call transfer from caller: (REFER)!<o:p></o:p></p>
<p class=MsoNormal>SIP transfer to extension 201@winsor_phones by
winsor_204@sip1.keshercommunications.com<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><--- Transmitting (NAT) to 94.193.81.135:49160 ---><o:p></o:p></p>
<p class=MsoNormal>SIP/2.0 202 Accepted<o:p></o:p></p>
<p class=MsoNormal>Via: SIP/2.0/UDP
94.193.81.135:49160;branch=z9hG4bK-5479aeea;received=94.193.81.135<o:p></o:p></p>
<p class=MsoNormal>From:
<sip:winsor_204@94.193.81.135:49160>;tag=f2c2287b333442fi0<o:p></o:p></p>
<p class=MsoNormal>To: "01617720007"
<sip:901617720007@83.222.226.126>;tag=as2eb45d54<o:p></o:p></p>
<p class=MsoNormal>Call-ID: 15dcfde333cdaf86302cb6490b04d745@83.222.226.126<o:p></o:p></p>
<p class=MsoNormal>CSeq: 102 REFER<o:p></o:p></p>
<p class=MsoNormal>User-Agent: Asterisk PBX<o:p></o:p></p>
<p class=MsoNormal>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE,
NOTIFY, INFO<o:p></o:p></p>
<p class=MsoNormal>Supported: replaces<o:p></o:p></p>
<p class=MsoNormal>Contact: <sip:901617720007@83.222.226.126><o:p></o:p></p>
<p class=MsoNormal>Content-Length: 0<o:p></o:p></p>
<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>set_destination: Parsing
<sip:winsor_204@94.193.81.135:49160> for address/port to send to<o:p></o:p></p>
<p class=MsoNormal>set_destination: set destination to 94.193.81.135, port
49160<o:p></o:p></p>
<p class=MsoNormal>Reliably Transmitting (NAT) to 94.193.81.135:49160:<o:p></o:p></p>
<p class=MsoNormal>NOTIFY sip:winsor_204@94.193.81.135:49160 SIP/2.0<o:p></o:p></p>
<p class=MsoNormal>Via: SIP/2.0/UDP
83.222.226.126:5060;branch=z9hG4bK2e10dade;rport<o:p></o:p></p>
<p class=MsoNormal>From: "01617720007"
<sip:901617720007@83.222.226.126>;tag=as2eb45d54<o:p></o:p></p>
<p class=MsoNormal>To:
<sip:winsor_204@94.193.81.135:49160>;tag=f2c2287b333442fi0<o:p></o:p></p>
<p class=MsoNormal>Contact: <sip:901617720007@83.222.226.126><o:p></o:p></p>
<p class=MsoNormal>Call-ID: 15dcfde333cdaf86302cb6490b04d745@83.222.226.126<o:p></o:p></p>
<p class=MsoNormal>CSeq: 103 NOTIFY<o:p></o:p></p>
<p class=MsoNormal>User-Agent: Asterisk PBX<o:p></o:p></p>
<p class=MsoNormal>Max-Forwards: 70<o:p></o:p></p>
<p class=MsoNormal>Remote-Party-ID: "01617720007"
<sip:901617720007@83.222.226.126>;privacy=off;screen=no<o:p></o:p></p>
<p class=MsoNormal>Event: refer;id=102<o:p></o:p></p>
<p class=MsoNormal>Subscription-state: terminated;reason=noresource<o:p></o:p></p>
<p class=MsoNormal>Content-Type: message/sipfrag;version=2.0<o:p></o:p></p>
<p class=MsoNormal>Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REFER, SUBSCRIBE,
NOTIFY, INFO<o:p></o:p></p>
<p class=MsoNormal>Supported: replaces<o:p></o:p></p>
<p class=MsoNormal>Content-Length: 49<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>SIP/2.0 481 Call leg/transaction does not exist<o:p></o:p></p>
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