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speech of a reply. Duplex operation is achieved in this way on a single
radio frequency.
Inter-operability between networks was to be ensured by specifi-
cation MPT 1375 Common Air Interface.
Digital European cordless telephone (DECT)
A pan-European system complying with an ETSI standard, DECT
operates in the 1880 to 1900 MHz band. It offers data handling facili-
ties and the ability for a subscriber to receive calls while away from the
local base station. The techniques are similar to those used for GSM
although, because the mobile is virtually stationary, the constraints
on data transmission are less severe and no hand-off is required. The
20 MHz RF bandwidth is divided into 13 carriers spaced at 1.7 MHz
intervals, each carrier containing 12 TDMA ...