Specifications

■ Users can signal, then speak to, system phone users who are already active
on a call to alert them of important business matters, provided Voice
Interrupt On Busy (#312) is Assigned for the recipient.
Considerations
■
■
The following instructions assume that system phones are set (using
Automatic Line Selection) to automatically select outside lines first, and
standard phones are set to select intercom first. This means that when a
user with a system phone lifts the handset, the user hears outside dial tone
(if an outside line is available); but when a user with a standard phone lifts
the handset, the user hears intercom dial tone.
If you are using an MDC 9000 or MDW 9000, make sure the handset is on
before using the following instructions. Also, these phones have no
speaker, so use the handset to make a call.
How to Make an Outside Call
System Phone
1. Lift the handset or press [ Spkr ].
The green light next to a line button is on steady and you hear outside dial
tone.
2.
Dial the phone number.
On a system display phone, the dialed number appears on the display.
If you are using a PBX or Centrex line, you also may need to use a dial-out
code (usually 9) before you dial a number outside the system.
To make an outside call on a specific line:
1. Press the idle line button (red and green lights are both off) or dial [ Intercom ] [ 8 ]
plus the two-digit line number.
2.
If desired, lift the handset.
3.
Dial the phone number.
To reserve a busy line so your phone beeps when the line becomes free—this is
useful when you share a line, such as a WATS line, with other people:
1. Press the busy line button (red light is on steady) without lifting the handset or
pressing [ Spkr ].
2.
When the line is free and your phone beeps, lift the handset and dial the
number. (If more than one person reserves a line, all their phones beep
when the line is free. The first person to pick up the phone after the beep
gets the line, and the other reservations are canceled.)
5-94 Making Calls