Grandstream GXP1625 crashing frequently

bug

#1

Phone is crashing when receiving calls, only normalizes after restart. The firmware is in the latest version and there are no network problems. We are using the two lines of the device.

Do you have any tips for solving this problem?

MAC Address: 00:0B:82:B5:B1:C5
Product Model:GXP1625
Part Number: 9620008025A
Firmware Version 1.0.4.152