Calls cutting out or one way audio

[dbartos31]

We have a pair of S8700 CM 4.0.5. We have been experiencing calls cutting out and one way audio on the Polycom/Avaya Spectralink phones 3645, 3626 and 3620. I have looked at the C lan boards and the Medpro boards and they are at the current firmware release and look to be working properly.

We have been adding more IP 1600 phones but I was told that should not cause this.

I am leaning towards the network and the APs having problems but I have to verify everything on the phone side first. Any ideas of what else I can check? Thanks!

[mskinner]

You should also make sure the firmware on the phones and the AVPP is up to date.

[mckee12]

Hate to revive a necro-thread but I'm having a similar issue with 1 sided communication on some of our spectralink handsets. Was there ever a solution reached?

[mittas]

You can take trace in CM of test calls on problematic stations and hope u will get some help/hint from the logs.