Toshiba IPT ユーザーズマニュアル

➤ 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 

 (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.

➤ 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.

➤

If you hear echo on your IPT1020-SD telephone, tap either 

9RO

 

▲ or 

9RO

 

▼

 once 

to cancel the echo.

➤

To make an emergency call, dial 

.

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 

 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.