MTD

Mobile Telephony system D

MTD mobile system for the frequency band 450MHz. It, in 1971 in Sweden was raised, and, until 1987, continued, being,
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Digital Cell Packed Data

Packet data, cellular digital (CDPD) of bandwidth usage that are typical for mobile phones AMPS at frequencies between
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GSM

Global System for mobile Communications

Gsm (GSM) or System Global Mobile Communications is one of the most commonly used standard mobile phones in the world.
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MMS

Multimedia Messaging Service

Service message, multimedia, or the SMS standard communication to send the message that has the elements of multimedia
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General Packet Radio Service

JP's RSS is a service, information, mobile package is oriented to users of mobile phones GSM and IP-136 is available.
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