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Plain old telephone service (POTS) is voice-grade telephone service employing analog signal transmission over copper loops. POTS was the standard service offering from telephone companies from 1876 until 1988 when the now-obsolete Integrated Services Digital Network (ISDN) Basic Rate Interface (BRI) was introduced, followed by cellular telephone systems, and Voice over IP (VoIP). POTS remains the basic form of residential and small business service connection to the telephone network in many parts of the world. The term reflects the technology that has been available since the introduction of the public telephone system in the late 19th century, in a form mostly unchanged despite the introduction of Touch-Tone dialing, electronic telephone exchanges and fiber-optic communication into the public switched telephone network (PSTN).
MCG-101/Aurora vs Beam, Sailor, Sky ConnectThe MCG-101 was designed as an intelligent PBX solution using Iridium to operate as a telephone, Internet portal, GPS device, and SMS terminal. The core of the MCG-101 is a powerful processor with a complete PBX capable of dynamic call functions, and easy customization via a web interface. You can attach equipment or computers via Ethernet, serial, or Industrial CAN bus. The MCG-101 utilizes the latest digital technology which enables the system...