In enterprise IT, a key telephone system (KTS) is a telecommunications system that converts a single public switched telephone network (PSTN) line into an array of internal business lines.

EPABX is an abbreviation that stands for Electronic Private Automatic Branch Exchange. It comes under the category of business phone systems which serve a business environment.

A Local Area Network (LAN) is a computer network covering a small local area, like a home, office or small group of buildings. Qualitynet brings you a wide range of LAN services.

Access Control System recognizes authenticates and authorizes entry of a person to enter into the premise thereby giving complete protection ensuring security with the system.

Obtaining a visual record of activities in situations where it is necessary to maintain proper security or access controls (for example, in a diamond cutting or sorting operation ….

Alarms can be either motorized bells or wall mountable sounders or horns. They can also be speaker strobes which sound an alarm, followed by a voice evacuation message which warns people

A cordless telephone or portable telephone is a telephone in which the handset is portable and communicates with the body of the phone by radio