The “Different Time Zones (DTZ)“ feature is used in situations when an IPDA shelf or access point (AP-IP) or HFA IP telephones are located in different time zones than the host system. In these cases, the local time of day should be shown instead of the system time on the display of the digital telephones that are connected to the remote AP or on the display of the HFA IP telephones.

For a detailed description, refer to the section „Different Time Zones (DTZ)“.