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STU-III (Secure Telephone Unit - third generation) is a family of secure telephones introduced in 1987 by the NSA for use by the United States government, its contractors, and its allies. STU-III desk units look much like typical office telephones, plug into a standard telephone wall jack and can make calls to any ordinary phone user (with such ...
List of country calling codes Worldwide distribution of country calling codes. Regions are coloured by first digit.
A telephone exchange name or central office name was a distinguishing and memorable name assigned to a central office. It identified the switching system to which a telephone was connected, and facilitated the connection of telephone calls between switching systems in different localities.
United States Army Field Manuals are published by the United States Army 's Army Publishing Directorate. They contain detailed information and how-tos for procedures important to soldiers serving in the field. As of July 2007, some 542 field manuals were in use.
The 3CX Phone System is the software -based private branch exchange (PBX) phone system developed and marketed by the company, 3CX. The 3CX Phone System is based on the SIP ( Session Initiation Protocol) standard and enables extensions to make calls via the public switched telephone network (PSTN) or via Voice over Internet Protocol (VoIP) services on premises, in the cloud, or via a cloud ...
Take 20% Off Raycon Earbuds, Headphones and Speakers Right Now — Act Fast! Bernadette Deron Updated March 6, 2023 at 6:58 PM
Star Trek Technical Manuals are a number of both official and fan-produced works detailing the technology of the fictional Star Trek universe; most pertain to starship design, though others target equipment used in the various Star Trek television series and films.
Nokia’s latest mega deals aim to reinvent a company associated with mobile phones it no longer sells Diane Brady, Orianna Rosa Royle July 1, 2024 at 3:06 AM Nikolas Liepins—Anadolu Agency via ...