Caller ID

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Caller ID

(CID) A feature of some modems.

Caller ID

A telephone company service that sends the caller's telephone number between the first and second ring of the call. If the calling number is not blocked, the calling number is displayed on the handset or base station of the called party. This is one feature within a set of services called Custom Local Area Signaling Services (CLASS). See ANI and CNAM.
References in periodicals archive ?
When the phone rings, even before you answer it, using Connect-ID Select or Caller-ID Telephone, and a phone company's Caller ID signal, you get instantaneous customer database information about the caller flashed on your screen.
Connect-ID Select and Caller-ID Telephone come with a built-in contact manager that links with many other popular Personal Information Manager (P.
System requirements are a 486 or higher PC, Microsoft Windows with TAPI, a single-line telephone and Caller-ID service from a local telephone company.