Caller ID

Caller ID automatically displays the phone number and optional name for incoming outside calls.
Programming for this Feature
Programming Caller ID
User Operation
Caller ID


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.

Caller ID on the SMDR Report

Caller ID data prints on the SMDR report. SDMF records print a single line which shows just the incoming number. MDMF records print on two lines, with the first line showing the number and the second line showing the name. Unlike the telephone display, the SMDR report can show the entire 15 digits in the DN, if required.

Following is a sample SMDR report showing Caller ID data. The first two lines of the report show a complete MDMF record with both the caller’s number and name. The last two lines of the report show two Caller ID error messages: Private Number and Out of Area. The “IN” in the type column indicates that the records shown are for incoming calls.

If no DN is received, no number or error message displays.

Station Message Detail Recording
05/10/2005 11:11A

Sta|Lin| Number Dialed                  |  Account |   Start |Duration| T
301| 02| 2139261000                     |          |11:11:39A|00:00:13|IN
301| 02| ANDERSON ALLEN                 |          |11:11:39A|00:00:13|IN
301| 02| Private Number                 |          |11:12:26A|00:00:12|IN 
301| 02| Out of Area Number             |          |11:13:16A|00:00:12|IN 

Caller ID Integration with Voice Mail

Caller ID fully integrates with IntraMail, UltraMail, and the NVM-Series voice mail systems. This enables voice mail features such as Make Call with Caller ID. Make Call allows the voice mail subscriber to return a call to someone who left them a message without knowing the calling party’s phone number.

Second Call Caller ID (Extension Level Call Waiting Caller ID)

While a display keyset user is busy on a call, the system can show the Caller ID information for a waiting call. If the busy extension is programmed to receive Camp-On tones or Off-Hook Ringing from the waiting call, the system will send the Caller ID data to the busy telephone’s display. If the busy extension does not receive Camp-On tones or Off-Hook Ringing, it will also not receive the waiting call’s Caller ID. (Note that Caller ID data from a Camp-On is displayed only once, corresponding to the single Camp-On beep.) This is an internal system feature and does not use the telco’s Call Waiting Caller ID.

Call Waiting with Caller ID Support

The system supports the telco's Call Waiting with Caller ID feature. If enabled for the line, a caller busy on an outside call:
  • Hears the telco Call Waiting tone.
  • Sees the Caller ID for the waiting call in the telephone display.
  • Can press FLASH to switch between their current call and the waiting call.

This feature is available to keysets, Cordless DECT, Cordless Lite II, and Caller ID single line telephones.

Third Party Caller ID Check

Third Party Caller ID Check allows an idle or busy keyset user to display the Caller ID data for another line. The line that the user checks can be ringing or busy.

Caller ID Display Separator

An extension’s display can optionally show a calling party number separator. The separator is a dash after the area code and after the local exchange on a 7 or 10 digit number. If disabled, the calling party number displays without a separator.

Caller ID to Single Line Telephones

The system provides Caller ID data to single line ports. This allows single line Caller ID telephones to receive the Caller ID data also available at keysets. Up to 8 single line telephones can receive Caller ID data simultaneously.

On Intercom calls, the single line telephone display will show the extension number and name (if programmed) of the internal caller.

Conditions and Defaults


  • None

Default Setting

Release Notes (System)

Third-Party SIP Phone Shows Incorrect Caller ID

[3.01] An issue is corrected in this software version that would cause a third-party SIP phone to show the incorrect caller ID.

Reference: A090512006

Second Call Caller ID COS Control Not Working (3.09)

[3.09] In prior software versions, Second Call Caller ID was always enabled regardless of the setting of 1404-02: Second Call Caller ID. This is now corrected.

Reference: A090402008

Second Call Caller ID Shows Previous Call Name

[3.09] If an extension user is on a call with MDMF (name and number), and they receive a second call that is SDMF (number only), the second line of the caller ID display will go blank. In prior versions, the second line of Caller ID would show the name from the previous call.

Reference: A090402009

Other Related Features


  • Call Timer
    • The Auto Timer feature interacts with Caller ID on the first line of the telephone display. If an extension has Call Timer enabled, the first line (i.e., caller’s name) of the Second Call Caller ID display won’t show. The user will only see the caller’s number (in the second line).
  • Call Waiting / Camp-On and Off-Hook Signaling
    • An extension programmed to receive Camp-On tones or Off-Hook Ringing from a waiting call will also receive Second Call Caller ID.
    • If an extension is set up to receive Off Hook Ringing, it will receive Second Call Caller ID for each new outside call. The display returns to idle when the second call stops ringing.
    • If an extension is set up to receive Call Wait beeps, it will receive Second Call Caller ID only for the first call. This occurs, for example, for DILs and transferred outside calls. With transferred outside calls, the Second Call Caller ID displays until the call recalls the transferring destination (if not picked up). With DILs, the Second Call Caller ID displays remains until the extension activates another feature.
  • Caller ID Logging
    • An extension can store the caller’s name and phone number for easy review and redialing.
  • Group Ring
    • An extension’s display will show Caller ID data for a line terminated to a Ring Group master number as the call is ringing.
  • Station Message Detail Recording
    • Caller ID prints out on the SMDR report.
  • Voice Mail (IntraMail)
    • Caller ID fully integrates with IntraMail, UltraMail and NVM-Series voice mail systems.

IntraMail Features

  • None