11-26-2013 01:33 PM - edited 07-04-2021 01:20 AM
We have 4 of these phones connecting to 2600i AP's on a WLC. They can sit idle for hours, but when you make a call, it will work, then at random, just drop off and reboot. I also noticed that response times to all 4 phones will be good, around 30-40 ms then skyrocket after a while to upwards of 600 ms. I dont know if this is normal, and happens when the phone is idle, but I did notice when calling extension to extension between 2 phones response times were normal.
When the call drops, ping stops responding.
I have done quite a few deployments, and can find nothing wrong on the WLC or callmanager, this is a first I have ever seen this. Not sure if its a bug on the WLC, or the phone.
11-26-2013 03:25 PM
I also noticed that response times to all 4 phones will be good, around 30-40 ms then skyrocket after a while to upwards of 600 ms.
You will get high response time when there phone is on idle. Good ping time happens when you are on a call.
They can sit idle for hours, but when you make a call, it will work, then at random, just drop off and reboot.
Make sure your phones are running firmwares version 1.4(3) and higher.
11-26-2013 04:19 PM
They are. Going there tomorrow with a 7921 that I know works fine on LWAP wireless.
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