What is Basic Business Phone Service?
Basic Business Phone Service (POTS) is the voice-grade telephone service that remains the basic form of small business service connection to the telephone network. It has been available almost since the introduction of the public telephone system in the late 19th century, and remains mostly unchanged and considerably reliable.
Basic Business Phone Service carries a DC current at a nominal voltage of 48V, supplied by a power conversion system. This power conversion system is backed up with a bank of batteries, resulting in continuation of service during interruption of power to the customer supplied by their electrical utility.
The communication circuits of the telephone network continue to be modernized by advances in digital communications; however, other than improving sound quality, these changes have been mainly transparent to customers. In most cases, the function of the local loop presented to the customer for connection to telephone equipment is practically unchanged and remains compatible with pulse dialing telephones. Due to the wide availability of traditional telephone services, new forms of communications devices such as modems and facsimile machines were initially designed to use traditional analog telephony to transmit digital information.