[cisco-voip] echo in CUCM 6.1 !!!

[Djokic Sinisa]

hi guys..

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..

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..

 

we changed everything we could in VG config, from echo cancel coverage, IOS
image to attenuation..and nothing helped..

 

 

any ideas..

 

 

thanx..

 

 

regards..

 

Sinisa Djokic 

System Engineer
CCNP,CCDA,CQS-CWLDS,CS-CIPTDS,CS-CIPCCES Cisco Certified

 




  

MDS Informaticki inzenjering
Bul. Arsenija Carnojevica 170
11070 Novi Beograd, Serbia
Tel: +381 11 2015 200, 2015 273
Fax: +381 11 3194 954
www.mds.rs
sdjokic at mds.rs

 

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