Telephone signaling interface
- Telephone signaling interface
There are many interface standards between analog telephone central office equipment and the subscriber's premise. Single voice paths generally include analog audio connections, either a two-wire circuit or four-wire circuit plus signaling paths to indicate call progress and status information, such as ringing, answer supervision, etc. Some of the known interface types are
* FXO foreign exchange office
* FXS foreign exchange station
* DPO dial pulse originate
* DPT dial pulse terminate
* E and M signaling
* KS Kewlstart
* Loop start
* Ground start
Wikimedia Foundation.
2010.
Look at other dictionaries:
Signaling System 7 — Signaling System #7 (SS7) is a set of telephony signaling protocols which are used to set up most of the world s public switched telephone network telephone calls. The main purpose is to set up and tear down telephone calls. Other uses include… … Wikipedia
Signaling System 7 — Signaling System #7 (SS7) ou système de signalisation #7 est un ensemble de protocoles de signalisation téléphonique qui sont utilisés dans la grande majorité des réseaux téléphoniques mondiaux. Sa principale application est l établissement et la … Wikipédia en Français
Telephone exchange — A telephone operator manually connecting calls with cord pairs at a telephone switchboard. In the field of telecommunications, a telephone exchange or telephone switch is a system of electronic components that connects telephone calls. A central… … Wikipedia
Telephone — The telephone (from the el. τῆλε, tēle , far and φωνή, phōnē , voice ) is a telecommunications device that is used to transmit and receive sound (most commonly speech), usually two people conversing but occasionally three or more. It is one of… … Wikipedia
Telephone switchboard — PBX switchboard, 1975 A switchboard (also called a manual exchange) was a device used to connect a group of telephones manually to one another or to an outside connection, within and between telephone exchanges or private branch exchanges (PBXs) … Wikipedia
Business telephone system — Early model 464G Western Electric key telephone set A business telephone system is any of a range of a multiline telephone systems typically used in business environments, encompassing systems ranging from small key systems to large scale private … Wikipedia
Public switched telephone network — The public switched telephone network (PSTN) is the network of the world s public circuit switched telephone networks. It consists of telephone lines, fiber optic cables, microwave transmission links, cellular networks, communications satellites … Wikipedia
Primary rate interface — The primary rate interface (PRI) is a telecommunications standard for carrying multiple DS0 voice and data transmissions between two physical locations.All data and voice channels are ISDN and operate at 64 kbit/s.T1 vs. E1 SystemsNorth America… … Wikipedia
V5 interface — V5 is a family of telephone network protocols defined by ETSI which allow communications between the telephone exchange, also known in the specifications as the local exchange (LE), and the local loop. With potentially thousands of subscribers… … Wikipedia
Foreign exchange office — In telecommunications, a Foreign Exchange Office, or FXO, is a telephone signaling interface that receives POTS, or plain old telephone service . It generates the on hook and off hook indicators used to signal a loop closure at the FXS s end of… … Wikipedia
