telex operator
51Orascom Telecom Holding — S.A.E. Type Public (LSE: OTLD) Founded …
52Telephone number — A telephone number or phone number is a sequence of digits used to call from one telephone line to another in a public switched telephone network. When telephone numbers were invented, they were short as few as one, two or three digits and were… …
53Mobile phone — Cell Phone redirects here. For the film, see Cell Phone (film). Handphone redirects here. For the film, see Handphone (film) …
54Business 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 …
55Communications in Israel — Cellular network antennas in Israel The Communications system in Israel is the most developed in the Middle East, although it is not the biggest. Israel s system consists of Coaxial cables, Optical fibers, and Microwave radio relay …
56Multimedia Messaging Service — For other uses, see MMS (disambiguation). A multimedia message on a mobile phone. Multimedia Messaging Service, or MMS, is a standard way to send messages that include multimedia content to and from mobile phones. It extends the core SMS (Short… …
57Text messaging — Texter redirects here. For the American surname, see Texter (surname). Txt msg redirects here. For the TV series, see Pop Up Video. A user typing a text message on an LG enV (VX9900) Text messaging, or texting, refers to the exchange of brief… …
58Collect call — A collect call in the USA and Canada or reverse charge call in the UK and other countries (or calling collect) is a telephone call in which the calling party wants to place a call at the called party s expense. In the past, collect calls were… …
59Conference call — A Polycom phone made specifically for conference calls. A conference call is a telephone call in which the calling party wishes to have more than one called party listen in to the audio portion of the call. The conference calls may be designed to …
60Voice procedure — includes various techniques used to clarify, simplify and standardize spoken communications over two way radios, in use by the military, in civil aviation, police and fire dispatching systems, citizens band radio (CB), etc. Voice procedure… …
