Business telephone systems are used in small and large scale businesses. They have multiple telephone lines and offer additional features. It has three types of systems like Key systems, Private branch systems and Hybrid systems. Key systems: These types of business phone systems were manually operated. They are built on three principles electronic shared control, electro mechanical shared control and independent keysets.

They have individual line selection buttons for each phone line. They are less common now. Hybrid systems: These business phone systems may support outside lines or direct dialing to extensions. Modern hybrid systems are mostly fully digital. In financial services industry hybrid systems are very common. For interaction with voice mail and rack room staff it only needs attached PBXs.

Multiple hoots are provided to multiple locations for multiple users on multiplexed users. It offers various features and facilities. Private branch exchange: These business telephone systems are like telephone exchange. They incorporate fax machines, telephones, modems and extensions to all the branches in the company. Advantages of Private branch exchange:

• It establishes connection between the telephone systems of two users.

• It disconnects unwanted calls which the user doesn’t require.

• It maintains the connection according to the user’s requirements.

• It provides information for accounting purposes.

>>> Business phone systems—a boon for business