Random handset dropouts and "Initializing Data"

[YCMJamie]

I have a customer with 11 of these W52P handsets at 5 different site addresses:

• Site 1 = 4 handsets
• Site 2 = 3 handsets
• Site 3 = 2 handsets
• Site 4 = 1 handset
• Site 5 = 1 handset
  

All the handsets are within 10m of their respective base station.

At random times, sometimes multiple times per day, all handsets on a site will simultaneously lose connection with their base station. This happens at every site (not simultaneously across sites, just within one site).

All handsets connected to a base will get the "Initializing Data" message on the display, and logs show that the base station is pushing the config to the handsets (date/time, handset name etc).

The handsets/base stations are configured as extensions on a hosted PBX platform (LG-Ericsson iPECS Cloud)

Each site has different connectivity.

This has been going on for some time, and the customer is at their wit's end.

What can we do to resolve the issue?