These intercoms are commonly used on gates, doors and other entrances to enable the visitor to video call and talk to the people inside the house or the premises so that he/she can be granted access.

The Telephone Access Control System: is designed to provide residents/visitors with access control to buildings such as apartments, town houses, clusters, offices and road clusters of up to 100 residents. The closure is constructed of heavy gauge stainless steel designed for surface mount enclosures. The system comes complete with a backlit extended temperature display which provides clear messages and an illuminated directory of its residents. The enclosure also includes a metal keypad and a paper directory for about 40 names. The system uses the dedicated phone line to call preprogrammed telephone numbers when the unique directory code is entered. The system is programmable via its integrated metal keypad.

Microphone Communicating System (Through Glass): The phone system is usually used at such scenarios as receptions with glass enclosures or banking hall stations the receptionist or bank teller can be able to communicate with the bank customer using the device by of a controller and a microphone. These are most common in embassies

The intercoms enable the client to view and talk to the person/visitor on the other end of the door who wants to access the premisses.

Simple Intercoms: The simple audio intercom has a receiver and a gate station installed in the house and outside the gate respectively that enable communication.
The gate station has a button and a microphone. Pressing the button on arrival alerts those in the house to pick up the receiver. The system is usually connected to an automated gate system.
Video Intercoms:The operation is similar to the audio intercom.However, in addition to the receiver, this system has a video camera that enables the house occupants to view the person at the gate as they Communicate.

Intercommunicating Intercoms: Save time and energy by using intercommunicating intercoms at the office or state-of-the-art homes. While enjoying the comfort of your bed or living room, one is able to give instructions or communicate with others in the house without having to move. Each room can have an installed handset and coded to enable inter house communication.