SULAB Elevator 5-Way Intercom Host ZDH01-026-GG for Machine Room

Elevator Duty Room Intercom Host Monitoring Room Telephone Elevator Five-way Intercom Five-way Machine Room Telephone Elevator Accessories ZDH01-026-GG

Display and Language Settings: A large LCD display is used, with the default language set to Chinese, which can be switched between Chinese and English.
Call Log Query: While on-hook, press the "∧" or "∨" keys on the right side of the panel to view recent call logs, including the calling and called party numbers, as well as the date and time of the call. If no "up" or "down" key is pressed after 5 seconds, the display will return to its default state.
Local Number Setting: The default local number setting is "9990." After entering the preset interface, press "1" to set the local number. The first three digits of the number cannot be changed, and the last digit can be set to one of four: 0, 7, 8, or 9. The default setting is 0.

Calling function: Calls can be made to the ZDH01-021 machine room intercom, ZDH01-022 car intercom, ZDH01-023 car top intercom, and ZDH01-024 pit intercom. When used in conjunction with the ZDH01-021 machine room intercom, it enables group calling, allowing a single call to all intercoms within the system or within a specific zone.