Does the 9641G have a Jitter overhead FW 6.2023

[gcording]

Hi All
We have deployed approx.1800 9641Gs running FW 6.2023, the other day it was noticed that Jitter is present between a MedPro and a 9641G on the same LAN?

So my colleagues and I created two Direct IP Audio Test Calls between:

• Two 9641Gs.
• Two 9630's

All IP phones were connected to the same Access Switch a Cisco WS-C3750-48P and all set to Auto Negotiate which negated 100Mb Full Duplex with the switch.

• The call between the two 9641G Phones had consistent 1-2ms Jitter present with a worst case of 2.7 ms.

• The call between the two 9630 Phones had nominal Jitter with the worst case being 0.6 ms.

These initial results seem to imply that the 9641G running the latest Firmware has a Jitter overhead when compared to the 9630 IP Phones, we have raised a ticket with Avaya to investigate further.

Out of interest has anyone else observed this Jitter on their 9641G deployments either CM or IPO?

Thanks

[gcording]

Although not mentioned in the release notes the Jitter Overhead is resolved in FW H.323 6.2 SP1

Greg