AT&T MERLIN LEGEND Release 2.0 System Programming Manual page 693

Centralized Telephone Programming
C a l l b a c k
With Automatic Callback turned on, the system retries calls to busy extensions
or busy trunk pools. Assign a Selective Callback button to allow the system to
retry calls to busy extensions or busy trunk pools on a call-by-call basis.
Summary: Automatic Callback
Telephones
Mode
Programmable by
Programming Code
Display Label
Summary: Selective Callback
Telephones
Mode
Programmable by
Programming Code
Display Label
Call Waiting
With Call Waiting turned on, a user on a call will know that another call is
waiting. User hears one beep for a waiting inside call, two for an outside call.
Summary: Call Waiting
Telephones
Mode
Programmable by
Programming Code
Display Label
4-16 Call Waiting
All
All
User and System manager
On — 12
Off — 12
Cback Auto On/Off
All
All
User and System manager
55
Cback Sel
All
All
User and System manager
On — 11
Off — 11
CallWaiting On/Off