HP Notebook - 15-f162dx (ENERGY STAR) Get the features you need and the reliability you expect with this value-packed HP Notebook. Enjoy your favorite photos or videos with the stunning HD display and easily take it on the road with a thin design combined with security features to protect your data. See it clearly with HD.
Telecommunications is a general term for a vast array of technologies that send information over distances. Mobile phones, land lines, satellite phones and voice over Internet protocol (VoIP) are all telephony technologies -- just one field of telecommunications. Radio, television and networks are a few more examples of telecommunication.
A telephone line or telephone circuit (or just line or circuit within the industry) is a single-user circuit on a telephone communication system.hose wires may be connected back to two telephone lines at the local telephone exchange, thus making those jacks RJ14 jacks. More often, only two of the wires are connected to the exchange as one telephone line, and the others are unconnected.