Guys, i have the following topology:
I have on both switches data vlans and voice vlans.
Some of the phones at a random time failover to the srst router while the others are still registered to the CUCM.
There is a trunk port between both switches.
I checked the traces on the CUCM and i found a socket broken message when the ip phone is unregistered from the CUCM.
I plugged an ip phone directly on switch1 to check whether the same problem persists, i found that the tested phone works great.
Also i checked if there are some input/output errors on the interfaces on both switches, bt everything is great.
Did anyone face a similar problem before?