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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hello,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>we use Kamailio 3.0 on a Red Hat EL5.4 system with openssl
0.9.8e (the current Red Hat OpenSSL version). We want to use Kamailio 3.0 in
front of our Call Server (OpenSER 1.3.2) as a security gateway. So the Call
Server should only deal tcp, while the Security Gateway terminates the TLS Data
which he receives from the User Agents but forwards the SIP-Messages via TCP to
the Call Server.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>UA ---SIP_over_TLS---> Security Gateway (Kam3.0)
---SIP_over_TCP---> Call Server (OpenSER1.3.2)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>UA<---SIP_over_TLS--- Security Gateway (Kam3.0)
<---SIP_over_TCP--- Call Server (OpenSER1.3.2)<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Nearly everything works fine in this scenario: User Agents
are able to register and when they are sending INVITES the callee receives it. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The problem we have right now is: if Kamailio 3.0 receives
BYE we get „477 Unfortunatly error on sending to next hop occured“.
It seems that the messages are ok...<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I attached a text file with the BYE message and the errors.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Explanation for the text file: <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>* UA1: 192.168.0.126<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>* UA2: 192.168.0.176<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>*Security Gateway (Kam3.0): 192.168.0.89<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>*Call Server (OpenSER1.3.2): 192.168.0.106<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>No.
Time Source Destination Protocol Info<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'> 101
7.964015 192.168.0.106 192.168.0.89 SIP Request: BYE
sip:+497118113608227@192.168.0.89:37260;transport=TLS<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'><o:p> </o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Frame
101 (1138 bytes on wire, 1138 bytes captured)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Ethernet
II, Src: AlliedTe_3e:b8:05 (00:15:77:3e:b8:05), Dst: Dell_a0:e2:3f
(00:1c:23:a0:e2:3f)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Internet
Protocol, Src: 192.168.0.106 (192.168.0.106), Dst: 192.168.0.89 (192.168.0.89)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Transmission
Control Protocol, Src Port: 50445 (50445), Dst Port: sip (5060), Seq: 1234,
Ack: 1, Len: 1072<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Session
Initiation Protocol<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Request-Line: BYE sip:+497118113608227@192.168.0.89:37260;transport=TLS SIP/2.0<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Message Header<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Record-Route: <sip:192.168.0.106;transport=tcp;lr=on;ftag=ba3448a0><o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Record-Route: <sip:192.168.0.89;transport=tcp;r2=on;lr=on><o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Record-Route: <sip:192.168.0.89:5061;transport=tls;r2=on;lr=on><o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TCP 192.168.0.106;branch=z9hG4bK854f.b305c913.0;i=19<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TCP 192.168.0.89;rport=37260;branch=z9hG4bK854f.dac34f77.0;i=a<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TLS
192.168.0.126:62399;branch=z9hG4bK-d8754z-51f50d6cfa997da7-1---d8754z-;rport=1876<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Max-Forwards: 68<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Route: <sip:192.168.0.89;transport=tcp;r2=on;lr=on><o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Route: <sip:192.168.0.89:5061;transport=tls;r2=on;lr=on><o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Contact:
<sip:+497118113608226@192.168.0.89:37260;transport=TLS;rinstance=972e46956fc87f26><o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
To:
"+497118113608227"<sip:+497118113608227@192.168.0.106>;tag=15c25277<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
From: <sip:+497118113608226@192.168.0.106>;tag=ba3448a0<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Call-ID: ZjdiMWY5NTYxMTMyN2Q5NTkwOWVmZWExOTEwMDhjYzQ.<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
CSeq: 2 BYE<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
User-Agent: Bosch Communicator release 2.5.4.2 GAC4 stamp 54836<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Reason: SIP;description="User Hung Up"<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Content-Length: 0<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
P-hint: rr-enforced<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'><o:p> </o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>No.
Time Source Destination Protocol Info<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'> 103
7.964791 192.168.0.89 192.168.0.106 SIP Status: 477
Unfortunately error on sending to next hop occurred (477/SL)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'><o:p> </o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Frame
103 (887 bytes on wire, 887 bytes captured)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Ethernet
II, Src: Dell_a0:e2:3f (00:1c:23:a0:e2:3f), Dst: AlliedTe_3e:b8:05
(00:15:77:3e:b8:05)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Internet
Protocol, Src: 192.168.0.89 (192.168.0.89), Dst: 192.168.0.106 (192.168.0.106)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Transmission
Control Protocol, Src Port: sip (5060), Dst Port: 50445 (50445), Seq: 1, Ack:
2306, Len: 821<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Session
Initiation Protocol<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Status-Line: SIP/2.0 477 Unfortunately error on sending to next hop occurred
(477/SL)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Message Header<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TCP 192.168.0.106;branch=z9hG4bK854f.b305c913.0;i=19<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TCP 192.168.0.89;rport=37260;branch=z9hG4bK854f.dac34f77.0;i=a<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TLS
192.168.0.126:62399;branch=z9hG4bK-d8754z-51f50d6cfa997da7-1---d8754z-;rport=1876<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'> To:
"+497118113608227"<sip:+497118113608227@192.168.0.106>;tag=15c25277<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
From: <sip:+497118113608226@192.168.0.106>;tag=ba3448a0<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Call-ID: ZjdiMWY5NTYxMTMyN2Q5NTkwOWVmZWExOTEwMDhjYzQ.<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
CSeq: 2 BYE<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Server: kamailio (3.0.0 (i386/linux))<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Content-Length: 0<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
[truncated] Warning: 392 192.168.0.89:5060 "Noisy feedback tells:
pid=10378 req_src_ip=192.168.0.106 req_src_port=50445
in_uri=sip:+497118113608227@192.168.0.89:37260;transport=TLS
out_uri=sip:+497118113608227@192.168.0.89:37260;transport<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'><o:p> </o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>No.
Time Source Destination Protocol Info<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'> 104
7.964845 192.168.0.89 192.168.0.106 SIP Status: 477
Unfortunately error on sending to next hop occurred (477/TM)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'><o:p> </o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Frame
104 (887 bytes on wire, 887 bytes captured)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Ethernet
II, Src: Dell_a0:e2:3f (00:1c:23:a0:e2:3f), Dst: AlliedTe_3e:b8:05
(00:15:77:3e:b8:05)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Internet
Protocol, Src: 192.168.0.89 (192.168.0.89), Dst: 192.168.0.106 (192.168.0.106)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Transmission
Control Protocol, Src Port: sip (5060), Dst Port: 50445 (50445), Seq: 822, Ack:
2306, Len: 821<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>Session
Initiation Protocol<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Status-Line: SIP/2.0 477 Unfortunately error on sending to next hop occurred
(477/TM)<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Message Header<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TCP 192.168.0.106;branch=z9hG4bK854f.b305c913.0;i=19<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TCP 192.168.0.89;rport=37260;branch=z9hG4bK854f.dac34f77.0;i=a<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Via: SIP/2.0/TLS
192.168.0.126:62399;branch=z9hG4bK-d8754z-51f50d6cfa997da7-1---d8754z-;rport=1876<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'> To:
"+497118113608227"<sip:+497118113608227@192.168.0.106>;tag=15c25277<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
From: <sip:+497118113608226@192.168.0.106>;tag=ba3448a0<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Call-ID: ZjdiMWY5NTYxMTMyN2Q5NTkwOWVmZWExOTEwMDhjYzQ.<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
CSeq: 2 BYE<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Server: kamailio (3.0.0 (i386/linux))<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
Content-Length: 0<o:p></o:p></span></font></i></p>
<p class=MsoNormal><i><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-style:italic'>
[truncated] Warning: 392 192.168.0.89:5060 "Noisy feedback tells:
pid=10378 req_src_ip=192.168.0.106 req_src_port=50445
in_uri=sip:+497118113608227@192.168.0.89:37260;transport=TLS
out_uri=sip:+497118113608227@192.168.0.89:37260;transport<o:p></o:p></span></font></i></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Do you have any suggestions?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thank you very much in advance!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Regards<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Andreas<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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