[cisco-voip] 7.1(2) voice quality issues, IP phone to IP phone

[Erick Bergquist]

Hi,

Just want to bounce this off list. Working on issue on
a 4.1(2)sr1 system with 7960s on 7.1(2) currently.
They have 3 remote sites, ATM between sites. QoS/LLQ
is set and no drops but users reporting issues with IP
phone to IP Phone calls, where the call will be fine
for a few minutes then after a few minutes it starts
to cut in and out and progressively gets worse. The
call doesn't drop. No WAN/LAN interface errors along
path calls travel. 

They have regions set, and are doing G729 between
sites and have 200k bandwidth allocated under
locations/CAC. No out of resources (checked the
servers location performance counters). No drops on
QoS policies and LAN appears to be ok with no visible
issues.

They are also experincing echo on IP to IP phone calls
now and then between sites, and between 2 IP Phones on
same LAN in same device pool (G711 in this case).

I am aware of bug CSCeh01099 which may be playing a
factor here maybe, but looking to see if anyone else
has ran into this or not. I'm pushing for a phoneload
update to 7.2(2) or 7.2(3) to start with and have set
up QRT softkey on phone also. this bug id also
mentions CCM version for fix so do also have to
upgrade CCM to 4.1(3)sr1 to get complete fix?


		
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