[cisco-voip] cucm 6.1(2) and h.323 issues !!!

Djokic Sinisa sdjokic at mds.rs
Tue Feb 17 10:53:06 EST 2009


hi group..



we're facing some audio issues in our CUCM 6.1(2) to h.323 gateway

inbound calls are facing the following problems:


1. PSTN caller calls IP phone - inbound call


if fast start ISN'T turned on in callmanager admin page, we're having 2-4
secs delay between the moment audio can be heard..

no audio is lost..



2. PSTN caller calls IP phone - inbound call


if fast start IS turned on in callmanager admin, we're having normal call
establishment without delay, BUT, let's describe it this way..

if PSTN caller counts from 1 to 5, IP phone person can hear 1, but 2 and 3
are lost, and then 4,5 can be heard and everything afterwords is fine..

so some 2-3 secs of call is lost, but not the initial one, but after first
or second second of call..


so, did anybody faced this problem..


all the config is classic, dial-peer macth, h323 bind address, voice rtp
send-recv, codec match, no network delay or congestion etc..




any thoughts or should i contact TAC..









Sinisa Djokic 

System Engineer



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


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