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The telephone line connectors on the bottom of the modem The controller included with the modem. The Famicom Modem began mass production in September 1988. The accompanying proprietary online service called the Famicom Network System was soon launched the same year alongside Nippon Telegraph and Telephone's new DDX-TP telephone gateway for its existing packet switched network.
The Military Industry and Telecoms Group (Vietnamese: Tập đoàn Công nghiệp - Viễn thông Quân đội, lit. 'the Army Industry - Telecommunications Group'), [3] [4] trading as Viettel or Viettel Group (Tập đoàn Viettel), is a Vietnamese state-owned multinational telecommunications, technology and manufacturing conglomerate headquartered in Hanoi, Vietnam.
An Internet-accessing smartphone may have the same capabilities as a standalone modem, and, when connected via a USB cable to a computer, can serve as a modem for the computer. Smartphones with built-in Wi-Fi also typically provide routing and wireless access point facilities. This method of connecting is commonly referred to as "tethering." [9]
V.17 is an ITU-T recommendation for a fax modem using TCM modulation at 12 and 14.4 kbit/s. V.18 is an ITU-T recommendation for operation and interworking of text telephone devices V.21 is an ITU-T recommendation for full-duplex communication between two analogue dial-up modems using audio frequency-shift keying modulation at 300 baud to carry ...
Terminal-emulator software typically allows the user to send Hayes commands directly to the modem, and to see the responses. In this example, the user of computer A makes the modem dial the phone number of modem B at phone number (212) 555-0100 (long distance). After every command and response, there is a carriage return sent to complete the ...
An example handshake of a dial-up modem. Modern dial-up modems typically have a maximum theoretical transfer speed of 56 kbit/s (using the V.90 or V.92 protocol), although in most cases, 40–50 kbit/s is the norm. Factors such as phone line noise as well as the quality of the modem itself play a large part in determining connection speeds.
The Vietnamese company Viettel bought a 60% share, with the Haitian government keeping the remaining 40% of the company. [1] Teleco was constantly hobbled by political interference which affected its performance. A net generator of revenues for the government in the 1970s and early 1980s, Teleco's fortunes then began to decline. [citation needed]
A "short haul modem" is a device that bridges the gap between leased-line and dial-up modems. Like a leased-line modem, they transmit over "bare" lines with no power or telco switching equipment, but are not intended for the same distances that leased lines can achieve.
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