Vertical Communications R DSU - Manual (Page 22)

3.2 Using Automatic Call-Back
•
To arrange for the system to call back when a busy station
becomes idle or rings with no answer,
1. Make intercom call and hear busy signal or ring-back tone.
2. Dial ✳ 6.
3. Hang up. (When called station becomes idle or is operated by its
user, your station will ring. Call-back is canceled if you do not lift
your handset when you hear this ringing).
•
To answer call-back ring,
1. Lift handset (called station will ring; call-back is canceled if you
do not lift your handset).
•
To cancel automatic call-back,
1. Press INTERCOM and dial # 6.
3.3 Using Call Waiting
• To activate call waiting,
1. Make intercom call and hear busy signal.
2. Dial ✳ 0 1 (called party hears tone).
3. Wait on line for an answer.
•
To cancel call waiting,
1. Hang up handset.
•
To answer a call-waiting tone at your telephone,
1. Hear short tone burst in handset receiver.
2. Complete present call, and hang up (waiting call will begin
ringing).
3. Lift handset to answer.
Making Calls GCA70–248
3 – 4 Non-LCD Station User's Guide