Telephone System – Analog and IP

A telephone network is a telecommunications network that connects Telephones, which allows telephone calls between two or more parties, as well as newer features such as fax and internet. … A landline network where the telephones must be directly wired into a single telephone exchange.

A business telephone system differs from an installation of several telephones with multiple central office (CO) lines in that the CO lines used are directly controllable in key telephone systems from multiple telephone stations, and that such a system often provides additional features related to call handling. There are analog and IP based telephone system , can be used in the business environment based on the customer requirements.