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<p class=pbu1bullet1><font size=2 color="#333333" face="Trebuchet MS"><span style='font-size:10.0pt;font-family:"Trebuchet MS";color:#333333'>The kind of scenario
you are describing is also knows as intermittent one-way audio from GW to ip
phones. Kindly check the resolved caveat in IOS release or by enabling MTP on
Call Managers.</span></font></p>
<p class=pbu1bullet1><b><font size=2 face="Trebuchet MS"><span style='font-size:10.0pt;font-family:"Trebuchet MS";font-weight:bold'>CSCeg63430<br>
</span></font></b><a name=wp42791></a><font size=2 face="Trebuchet MS"><span style='font-size:10.0pt;font-family:"Trebuchet MS"'>Symptoms: One-way voice
occurs when an IP phone transfers a call back to the PSTN via a Cisco AS5850
after having received the call from the PSTN via the same Cisco AS5400. The
caller at the PSTN side hears the transferee at the (other) PSTN side, but not
the other way around. <a name=wp42792></a>Conditions: This symptom is observed
when the Cisco AS5850, which runs Cisco IOS Release 12.3T, connects
to the PSTN via an PRI in the following topology: <a name=wp42793></a>Caller--Phone--PSTN--PRI--AS5850--CCM--IP
Phone Transfer--CCM--AS5850--PRI-- PSTN--Transferee <a name=wp42794></a><b><font color="#333333"><span style='color:#333333;font-weight:bold'></span></font></b></span></font></p>
<p class=pb2body2><font size=2 color="#333333" face="Trebuchet MS"><span style='font-size:10.0pt;font-family:"Trebuchet MS";color:#333333'>Workaround:
Enable MTP or the Cisco Call Manager. </span></font></p>
<p class=pb2body2><a name=wp42795></a><font size=2 color="#333333" face="Trebuchet MS"><span style='font-size:10.0pt;font-family:"Trebuchet MS";
color:#333333'>Further Problem Description: Although the symptom is not
observed in Cisco IOS Release 12.3, the fix is included in
Cisco IOS Release 12.3 as a precaution.</span></font></p>
<p class=MsoNormal><font size=2 color="#333333" face="Trebuchet MS"><span style='font-size:10.0pt;font-family:"Trebuchet MS";color:#333333'>In my case
MTP was enabled, solved it by upgrading the IOS release to </span></font><font size=2 color="#333333" face="Trebuchet MS"><span style='font-size:10.0pt;
font-family:"Trebuchet MS";color:#333333'>12.4(6) T2. I faced the problem on
5400 Series</span></font></p>
<p class=MsoNormal><font size=2 color="#333333" face="Trebuchet MS"><span style='font-size:10.0pt;font-family:"Trebuchet MS";color:#333333'> </span></font></p>
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<p class=MsoNormal><font size=1 color="#333333" face=Verdana><span style='font-size:7.0pt;font-family:Verdana;color:#333333'>Thanks & Regards,<br>
</span></font><strong><b><font size=1 color="#333333" face=Verdana><span style='font-size:9.0pt;font-family:Verdana;color:#333333'>Humayun
Sami</span></font></b></strong><font size=3 face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2 face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b><span style='font-weight:bold'>On Behalf Of </span></b>Sechaba Mokoena<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, April 11, 2008 2:53
PM<br>
<b><span style='font-weight:bold'>To:</span></b> cisco-voip@puck.nether.net<br>
<b><span style='font-weight:bold'>Subject:</span></b> [cisco-voip] One Way
Audio on Call Pickup</span></font><font size=3 face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'></span></font></p>
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<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> </span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Hi,</span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> </span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>I
seem to have an intermittent problem with Call Pickup in CME. When we use call
pickup on an inbound call, sometimes I only have audio in one direction. The
calling party can hear us but we can’t hear them. Any ideas?</span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> </span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Kind
regards,</span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> </span></font></p>
<p class=MsoNormal><b><font size=2 color="#1f497d" face=Arial><span style='font-size:11.0pt;font-family:Arial;color:#1F497D;font-weight:bold'>Sechaba
Mokoena</span></font></b></p>
<p class=MsoNormal><font size=2 color=black face=Arial><span style='font-size:
11.0pt;font-family:Arial;color:black'>Systems Engineer</span></font></p>
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Integration</span></font></p>
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