Lucent Technologies MERLIN Plus Release 2 System Manual page 303

CONSIDERATIONS
ADMINISTRATION
PROGRAMMING
HOW TO USE
6-12 Accessory Equipment
You must have a licensed locksmith install any locks or electric strikeplates used
for doorphone operation.
Although the Doorphone Controller can be configured to connect to either a
Central Office (CO) port or a station port, it is recommended that only the CO
port connection be used. The CO port to which the Door Phone Controller is
connected can be dedicated to the Door Phone Controller, or shared by a CO line
and the Door Phone Controller.
The CO port to which the Doorphone Controller is connected must be
administered to appear on all telephones that are to answer the door. If the
Doorphone Controller shares the port with a CO line, that line must appear on all
telephones that are to access the CO line, as well as on any telephones that are to
answer the door. (See "Customized Line Assignment.")
Refer to the MERLIN™ Doorphone Owner's Manual for programming
information.
Dedicated Line
When the doorbell rings, pickup your telephone. You will be able to talk to
whomever is calling from the door. You can also open the door by dialing the
door open code or activating a switch. You disconnect by hanging
up the phone.
Shared Line Port
When the Doorphone Controller shares a port with a CO line, the
Doorphone Controller may be set so that when you pickup the telephone,
you are connected to either the doorphone or an outside line first. If the
phone is set to connect to the outside line first, you must flash the switchhook
(or press Recall) to connect to the door. If the phone is set to connect to the
doorphone first, you must dial 9 to access an outside line. In either case, the
door may be opened by dialing the door open code. The connection to the
Doorphone Controller is ended by hanging up the phone.