I’m using several units of the following models:
GXP1450 -> Version 18.104.22.168
GXP1625 -> Version 22.214.171.124
GXP1628 -> Version 126.96.36.199
GXP2160 -> Version 188.8.131.52
I had a problem with date/time in the PBX (6208), it was fixed using a custom time zone. Problem is that the time info is not getting reflected on the phones. Setup the NTP and time zone on the phone but it is not working. It is supposed to be GMT -4 but it says that it is GMT -5. Modify the zero config for the units in the PBX but it is not getting applied.