Internet caller ID is an application that allows users to screen incoming telephone calls. One type of Internet caller ID is for users with a single telephone line and a dial-up modem . A more sophisticated application is available for users of VoIP phone s or regular telephones that are connected to their computers.
For the Internet user who has only one phone line and employs a dial-up modem, Internet caller ID facilitates the reception of phone calls while online. When a call comes in, the device or program notifies the user by producing a pop-up or other indicator on the computer display. The user can then decide to ignore the phone call and continue the Internet session or suspend the Internet session while taking the phone call. This technology was first introduced by several companies in the late 1990s and is becoming less common as consumers increasingly have access to dedicated high-speed Internet connections.
VoIP caller ID , works in much the same way but with enhanced features and flexibility, such as the ability to verify the identity of callers.