<div dir="ltr">Sinisa,<br><br>Have you seen the troubleshooting guides on <a href="http://cisco.com">cisco.com</a> regarding echo? <br><a href="http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080149a1f.shtml">http://www.cisco.com/en/US/tech/tk652/tk698/technologies_tech_note09186a0080149a1f.shtml</a><br>
<br>The echo is probably less to do with your CUCM and IP Phones and more to do with the gateway and the outside telephone systems your people are calling.<br><br>Ed<br><br><div class="gmail_quote">On Wed, Jul 23, 2008 at 8:19 AM, Djokic Sinisa <sdjokic@mds.rs> wrote:<br>
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<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">hi guys..</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">did anybody had issues with echo in system with CUCM 6.1.2
and 2821 with 12.4 code ( varios version - 12.4.9T6, 12.4.15T etc. ), vwic-1mft-t1/e1
card and PVDM2-48..</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">the echo can be heard when call is placed to certain phone
numbers, and it is noticed on 7975 and 7911 phones - the only phone types in
system..</span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"> </span></font></p>
<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">we changed everything we could in VG config, from echo
cancel coverage, IOS image to attenuation..and nothing helped..</span></font></p>
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<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">any ideas..</span></font></p>
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<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">thanx..</span></font></p>
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<p><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">regards..</span></font></p>
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<p><b><b><font size="2" face="Verdana"><span style="font-size: 10pt; font-family: Verdana;">Sinisa Djokic</span></font></b></b><font size="2" face="Verdana"><span style="font-size: 10pt; font-family: Verdana;"> </span></font></p>
<p><font size="2" face="Verdana"><span style="font-size: 10pt; font-family: Verdana;">System Engineer</span></font><br>
<font size="2" face="Verdana"><span style="font-size: 10pt; font-family: Verdana;">CCNP,CCDA,CQS-CWLDS,CS-CIPTDS,CS-CIPCCES
Cisco Certified</span></font></p>
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<p><font size="1" face="Verdana"><span style="font-size: 7.5pt; font-family: Verdana;">MDS Informaticki inzenjering</span></font><br>
<font size="1" face="Verdana"><span style="font-size: 7.5pt; font-family: Verdana;">Bul.
Arsenija Carnojevica 170</span></font><br>
<font size="1" face="Verdana"><span style="font-size: 7.5pt; font-family: Verdana;">11070
Novi Beograd, Serbia</span></font><br>
<font size="1" face="Verdana"><span style="font-size: 7.5pt; font-family: Verdana;">Tel:
+381 11 2015 200, 2015 273</span></font><br>
<font size="1" face="Verdana"><span style="font-size: 7.5pt; font-family: Verdana;">Fax:
+381 11 3194 954</span></font><br>
<font size="1" face="Arial"><span style="font-size: 7.5pt; font-family: Arial;"><a href="http://www.mds.rs" target="_blank">www.mds.rs</a></span></font><br>
<font size="1" face="Arial"><span style="font-size: 7.5pt; font-family: Arial;"><a href="mailto:sdjokic@mds.rs" target="_blank">sdjokic@mds.rs</a></span></font></p>
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<br></blockquote></div><br><br clear="all"><br>-- <br>Ed Leatherman<br>Senior Voice Engineer<br>West Virginia University<br>Telecommunications and Network Operations
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