Toshiba DP5000-Series 用户手册

³ To call/monitor a door phone

1. With the handset off-hook, press an extension button. You hear dial tone and the 

LED flashes green (in-use).

2. Press 

#15

 (hear three tone bursts), then enter the door phone number (01~24, 

depending on system size). A two-way talk-path exists between your telephone 
and the door phone. The door phone will not ring. You can audibly monitor the 
area around the door phone.

³ To call from a door phone

1. Press the door phone button and then release it. You hear a distinctive ringing 

tone–one or five times (set in system programming).

2. When answered, speak at a normal voice level in the direction of the door phone.

³

To make an emergency call, dial 

911 

or

 Access Code

 + 

911

. This depends on 

off-hook preference set up for your telephone.

Check with your System Administrator for the Access Code because this code 
may be different from the one used to get an outside line.

Your system may have one digital telephone assigned as an emergency monitoring 
station. If your telephone has this assignment, your line LED will flash green when 
someone makes a 

911

 call. When you answer the call, you can listen in and 

participate in the conversation. See your System Administrator for more information 
on this feature.