Caller ID and CIDCW (Caller ID on Call Waiting)
When the telephone rings, the Caller ID feature allows you to view the caller’s name, phone number, date and time of call. With CIDCW (Caller ID on Call Waiting), you will hear a call waiting tone while you are on a call, and the Caller ID data is displayed. To accept the waiting call, press talk/flash on the handset or flash on the base. Additionally, you can dial a number stored in the Caller ID list or save data to your phonebook entries.
Caller ID messages and Phonebook entries share the same memory. Whatever memory is not used for phonebook entries is available for Caller ID messages. If you store all 100 phonebook entries in the handset or 50 entries in the base, your phone will not be able to store Caller ID messages. When you have received enough call to fill up the memory available for Caller ID messages, your phone will automatically overwrite the oldest Caller ID message when the next Caller ID message is received.
The date and time received Caller's name Caller's phone number
Packet8 service comes with Caller ID and Call Waiting.
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 does not appear. (This includes some international calls.)
1) When the Caller ID message is received, the display shows the caller's phone number along with the date and time. The incoming call information is stored in the Caller ID record. If the Caller ID service includes the caller's name, the name will appear in the display (up to 15 characters).
When the call is 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) 
CALLER ID AND CIDCW (CALLER ID ON CALL WAITING)