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caller. Other telephone companies may
only provide the number of the calling
party.
Note 1: When the VT 4121 is con-
nected behind a PBX or key
system, the caller ID features
cannot be used.
3.1 Receiving a Name and Number
Call
The display will show the caller ID in-
formation typically after the first ring:
Where: L1 is the ringing line number
1235215 is the number of the
caller
ABC CO. is the name of the
caller
Note: The display will return to the
idle mode when:
• The caller hangs up and ringing
stops.
• An extension telephone an-
swers the call.
• You answer the call and hang
up.
• You perform another telephone
function.
3.2 Receiving Multiple Calls
If two or more lines are ringing, the tele-
phone will show the caller ID informa-
tion for the line that began ringing first.
Press CID to view the caller ID infor-
mation for the next ringing line. You can
continue to press the button to view
caller ID information for subsequent
ringing lines. Once you have received
the information for all the ringing lines,
press CID again and the display will re-
turn to the date and time mode.
The display will first show the caller ID
information for Line 1:
1. Press CID to review the information
for Line 2:
2. Press CID to return to the time/date
display if no other lines are ringing.
3. Press CID to review the information
for Line 1 again:
3.3 Receiving a Number Only Call
The display will show:
3.4 Receiving a Blocked Call
Sometimes a caller will prevent their
number from being displayed on your
telephone:
CALLER ID OPERATION