1.4 DFeature Manual 69PT Programming Manual[507] DND OverrideFeature Manual References1.3.16 COS (Class of Service)Operating Manual References1.3.19 DND (Do Not Disturb)1.4.9 Door OpenDescriptionUsing an extension telephone, an extension user can unlock a door for a visitor.The door can be unlocked by extension users who are allowed to unlock the door in Class of Service (COS)programming. While engaged on a doorphone call, any extension user can unlock the door to let the visitorin. (→ 1.4.10 Doorphone Call)Conditions• Hardware Requirement: A user-supplied door opener installed on each door.• A door opener can unlock a door even if no doorphone is installed.• Door Open DurationAn opened door will remain unlocked for a preprogrammed length of time.• The port of the DPH4 card to which the door opener is connected must be assigned through systemprogramming as a door opener port (not a relay port). If it is not, it may not be possible to open the doorwhile on a doorphone call.Installation Manual References2.8.1 Connection of Doorphones, Door Openers, External Sensors, and External RelaysProgramming ReferencesPC Programming Manual2.8.4 [2-3] Timers & Counters—DISA / Door / Reminder / U. Conf—Doorphone—Open Duration2.8.8 [2-6-1] Numbering Plan—Main—Features—Door Open2.8.11 [2-7-1] Class of Service—COS Settings—CO & SMDR—Door UnlockPT Programming Manual[207] Door Unlock Time[512] Permission for Door Open AccessFeature Manual References1.3.16 COS (Class of Service)
