Certain models of IP Phones may not update their time automatically after Daylight Savings. To update your phones time you may need to perform the following steps:
1. Power the phone off and back on.
2. If you have access your phone system's PBX admin portal, you can "Apply Changes" to the system.
Note: If you don't have any changes to make, you can get the "Apply Changes" button to show up by editing a feature, extension, etc. and pressing Submit without actually making a change.
After performing these steps, the phone's time should update. If not, please don't hesitate to reach out to PrimeVOX support at firstname.lastname@example.org or 972-600-1150, option 1.