The DCC network was constructed on the basis of American digital standard D-AMPS
The Alcatel GSM 1800/GPRS network will support up to 400,000 lines and will overlay a previous D-AMPS
MOBILE BLOCKER is compatible with AMPS, D-AMPS
, CDMA, GSM, PCS, and PHS systems at frequency bands of 800, 900, 1800 and 1900.
Over five million of these subscribers are already using D-AMPS
digital services, and all analog AMPS systems have the potential of migrating to D-AMPS
in the future.
ICSA connects to the network using standard communication protocols (GSM, PCS 1900, D-AMPS