IP phones not getting NTP info. Wrong time zone and time



I’m using several units of the following models:

GXP1450 -> Version
GXP1625 -> Version
GXP1628 -> Version
GXP2160 -> Version

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.

Please advise.

Best regards


Set up the time zone in Zero Config independently of the UCM. This works for me.