We're having some issues with our Cisco UC320 system that we currently run with 13 SPA303 handsets.
Inbound calls occassionally drop and we have noticed that our lead (first rining handset) in the hunt group often freezes and needs to be manually rebooted back to life. This freezing behaviour is also exhibited by other handets in the group at random intervals.
We are running the latest firmware on the UC320 which is 2.2.2. The SPA303 handsets are running firmware 7.8.1 (RC1).
Any help or troubleshooting steps you could recommend would be of great benefit to us.
The UC320 has a standard warranty WARR-1YR-RTF-HW. This will entitle you to 8x5 local support, Monday through Friday, and if a warranty is determined, it is return to factory, not advance replacement. If you have owned the device for less than 1 year, you are entitled to this support level. If the default warranty show your product is out of warranty, but you own the device less than 1 year, the original invoice showing the purchase date, purchase location and purchase price can update the entitlement. If you have owned the device more than 1 year, you can purchase the con-sbs-svc2 contract for the 8x5xNBD support.
I left a message here the other day which you replied to as I was experiencing a similar problem (not exactly the same but with the unit dropping calls) and I think I have found the root of the problem. I don't know if this will be of any help to you but it is perhaps worth a try.
If you have a look at my post timestamped at 11-Sep-2012 02:47 in the following thread:
Configure Multicast Paging on the Cisco IP Phone 7800 Series or 8800 Series Multiplatform Phone
The Cisco IP Phone 7800 and 8800 Series Multiplatform Phones provide voice communication over an Internet Protocol (IP) network...
Add Call Park on a Cisco 7800 or 8800 Series Multiplatform Phone Key Expansion Module
Call park allows the user of the phone to put an incoming call on hold so that the call can be retrieved on another phone. A call is park...