Vertical Communications Impact SCS 8212S - Manual (Page 29)

3.9 Camping On At An Idle Station
And Waiting For An Automatic Callback
If you call another station and hear ringing but receive no answer, you
can press a button that will cause the system to ring your telephone when
any activity is initiated at that station.
•
To camp on at a station for which you hear ringing but receive no
answer,
1. Dial ✳ 6 and hang up the handset. Callback will occur after any
activity is initiated at dialed station. You may cancel the camp-on
condition at any time by pressing INTERCOM and dialing # 6.
NOTE: If you make a call in the voice announce mode and receive no
answer at the called station, the CALLBK option will still be
available to you.
GCA70–313 Making Calls
Station User's Guide 3 – 9