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Skype for Business (formerly Microsoft Lync and Office Communicator) is an enterprise software application for instant messaging and videotelephony developed by Microsoft as part of the Microsoft 365 (formerly Office) suite. It is designed for use with the on-premises Skype for Business Server software, and a software as a service version ...
Call signs are allocated to ham radio stations in Barbados, Canada, Mexico and the United States . Many countries have specific conventions for classifying call signs by transmitter characteristics and location. The call sign format for radio and television call signs follows a number of conventions. All call signs begin with a prefix assigned ...
v. t. e. The William Lynch speech, also known as the Willie Lynch letter, is an address purportedly delivered by a William Lynch (or Willie Lynch) to an audience on the bank of the James River in Virginia in 1712 regarding control of slaves within the colony. [1] In recent years, it has been widely exposed as a hoax.
Call sign. In broadcasting and radio communications, a call sign (also known as a call name or call letters —and historically as a call signal —or abbreviated as a call) is a unique identifier for a transmitter station. A call sign can be formally assigned by a government agency, informally adopted by individuals or organizations, or even ...
Autovon keypads were one of the few production units to include all 16 DTMF signals. The red keys in the fourth column produce the A, B, C, and D DTMF events. Dual-tone multi-frequency signaling (DTMF) is a telecommunication signaling system using the voice-frequency band over telephone lines between telephone equipment and other communications devices and switching centers.
Call signs in the United States. Call signs in the United States are identifiers assigned to radio and television stations, which are issued by the Federal Communications Commission (FCC) and, in the case of most government stations, the National Telecommunications and Information Administration (NTIA). They consist of from 3 to 9 letters and ...
Diplomatic correspondence. An 1862 letter of condolence from Abraham Lincoln to Queen Victoria on the occasion of the death of Prince Albert shows the republican salutation "Great and Good Friend". Diplomatic correspondence is correspondence between one state and another and is usually of a formal character. It follows several widely observed ...
The SIP URI scheme is a Uniform Resource Identifier (URI) scheme for the Session Initiation Protocol (SIP) multimedia communications protocol. A SIP address is a URI that addresses a specific telephone extension on a voice over IP system. Such a number could be a private branch exchange or an E.164 telephone number dialled through a specific ...