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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).
An intelligent PBX solution using Iridium to operate as a telephone, Internet portal, GPS device and SMS terminal.
The MCG-101 provides the most powerful and versatile Iridium communications system to offices, remote locations, aircraft, and maritime. The system presents an intelligent solution using the Iridium satellite network to operate as a universal communications hub, low-bandwidth internet gateway, and intelligent GPS device, allowing you to send and receive data and voice, and also connect to other devices through RS232 and ethernet.
The MCG-101 was designed and built using 100% digital technology. This enables the system to provide clear, true to life audio, and eliminates any internal echo problems. For external interface portions of the system, such an analog POTS telephone, echo cancellation is performed by a hardware echo canceler.
The MCG-101 can be used in a number of scenarios for both stationary and mobile needs, from enabling remote command posts, providing redundant communications infrastructure for operations bases, to enabling voice and data communications within vehicles or vessels, regardless of proximity to standard systems and telecom towers.More