note 
•If you answer a call before the Caller ID message is received (for example, before the second ring), the Caller ID message will not appear.
•When the call is received via a telephone company that does not offer Caller ID service, the caller´s phone number and name do not appear. (This includes international calls.)
•When the call is received via a private branch exchange (PBX), the caller´s phone number and name may not appear.
Caller ID and CIDCW (Caller ID on Call Waiting)
You must subscribe to Caller ID service through your local telephone provider to use this feature. When the telephone rings, the Caller ID feature allows you to view the caller’s name, phone number, date and time of call. The incoming call information is stored in the Caller ID record. If the Caller ID service includes the caller´s name, the caller´s name appears on the display (up to 15 letters).
The date and time received
Caller's name
Caller's phone number 
You may receive any one of the following messages:
When invalid data is received | Incomplete Data | |
When a private name is received | Private | Name |
When a private number is received | Private | Number |
When an unknown name is received | Unknown | Name |
When an unknown number is received Unknown | Number | |
Data errors appear as ¨ 
¨.
[ 2 9 ] C A L L E R I D A N D C I D C W ( C A L L E R I D O N C A L L W A I T I N G ) | w w w . u n i d e n . c o m |
