Hicap is a mobile technology developed by

Nippon Telegraph and Telephone , commonly known as NTT, is a Japanese telecommunications company headquartered in Tokyo, Japan. Ranked 55th in Fortune Global 500, ''Fortune'' Global 500, NTT is the fourth largest telecommunications company in the world in terms of revenue, as w ...

as a higher capacity alternative to their

NTT mobile solution NTT may refer to: * National Native Title Tribunal (NTT), Australian government instrumentality * NATO countries, as per NATO country code * New Technology Telescope, a 3.6m telescope at La Silla Observatory, Chile * New Technology Train, a series ...

. Hicap uses a 25 kHz carrier and uses

FDMA Frequency-division multiple access (FDMA) is a channel access method used in some multiple-access protocols. FDMA allows multiple users to send data through a single communication channel, such as a coaxial cable or microwave beam, by dividing ...

to separate different calls from each other.

External links

*http://www.mobileworld.org/analog_about.html Mobile radio telephone systems {{wireless-stub