NEC DSX 1093099 - Manual (Page 38)

Caller ID
30 ◆ Features DSX Feature Handbook
Caller ID
Description
Caller ID allows a display keyset to show an incoming caller’s telephone number (called Directory Number
or DN) and optional name as the call is ringing. Caller ID supports the telco’s Called Number Identification
(CNI) and Called Number Delivery (CND) service, when available. These services provide the Caller ID
information (i.e., messages) between the first and second ring burst of an incoming call.
Caller ID provides the following features:
Single and Multiple Message Format Compatibility
There are two types of Caller ID message formats currently available: Single Data Message Format (SDMF)
and Multiple Data Message Format (MDMF). With Single Message Data Format, the telco sends only the
caller’s phone number (DN). The DN can be up to 10 digits long. In Multiple Data Message Format, the
telco sends the DN and the caller’s name. The DN for this format can be up to 15 digits long, and the name
provided can consist of up to 15 ASCII characters.
If no DN is received, no number or error message displays.
Operation
Caller ID automatically displays the phone number and optional name for incoming outside calls.
Clearing the Display
In these instructions:
[Super Display Soft Key]
[Keyset Soft Key]
To cancel (clear) the Caller ID display and return your phone to its normal display:
• You can only do this while you are on a call, not while your phone is ringing.
1. Press CLEAR .
To turn the Caller ID display back on (after you press CLEAR to cancel it):
1. Press CHECK .
Third Party Caller ID
In these instructions:
[Super Display Soft Key]
[Keyset Soft Key]
To display the Caller ID data for the third party’s call:
1. Press INTERCOM + CHECK .
2. Press one of the following keys for the call you want to check.
• You see Caller ID data for the line you select.
Press a line key while the call is ringing or connected to the third party.
Press a loop key while the call is ringing the third party.
Press a Hotline key while the call is connected to the third party.
Press a Call Coverage key while the call is ringing the third party.
3. Hang up when you are done.