We have 2 x 3750 with integrated controllers, 8 x 1131 AP's, and approximately 35 x 7920 phones.
We have an issue with Jitter and occasional phone freeze with no button response for approximately 1 minute.
We are using the following QoS settings:
WMM state: disabled
QoS level: platinum
802.1p Tag: 7
We get the following readings from the phones:
Average Jitter 40
Maximum Jitter 60
Average Jitter 35
Maximum Jitter 55
Average Jitter 75
Maximum Jitter 95
As you see Jitter is always above the 30ms recommended.
Any help would be really appreciated