Call Block; Call Block Settings; Block Unknown Calls - AT&T GL2101 Complete User's Manual

Call block

Call block settings

If you have subscribed to caller ID service, you can set the telephone to block
unknown calls and certain undesired calls. The call block list can store up to 20
entries.
When a call is blocked, the caller will hear a simulated busy tone for one ring cycle.
The call recipient may pick up the call during the first ring when there is no caller ID
information. Otherwise, the call is disconnected.

Block unknown calls

All incoming calls with unknown numbers will be blocked.
/SELECT to enter the main menu when the handset is not in use.
1. Press
MENU
2. Press or
CID
3. Press or
CID
4. Press or
CID
to save the setting. You hear a confirmation tone.
to scroll to Call block, then press
DIR
to scroll to Call w/o num, then press
DIR
to highlight Unblock or Block, then press
DIR
48
/SELECT.
MENU
/SELECT.
MENU
/SELECT
MENU