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TAWA has been designed
such that it could be easily integrated into any country's
network. The system interfaces to the network on E1
(2.048 Mbps) lines as per ITU-T G703 standard. In one
of the configuration, the TAWA
system acts like a switch with its local loop.
The numbering plan is flexible so that it can be modified
as per the requirements. The tones, announcements, metering,
charging, switching, routing and special services are
provided by the switch part of the TAWA
system. Alternatively the TAWA
Wireless in Local Loop can be configured as an Access
Network connected to main exchange on ITU-T specified
access protocol V5.2.
The TAWA Wireless in Local
Loop has been designed to be a modular system. The basic
unit provides service to 1000 subscribers. Multiple
TAWA systems can be connected
together using a transit switch. The system has been
designed in such a way that the initial investment for
fixed part is very low and most of the cost is incurred
on the subscriber unit, which needs to be obtained only
when the operator signs up a subscriber.
Further, since TAWA Wireless
in Local Loop does not require frequency planning, the
installations need not be coordinated. Thus the low
cost makes the system one of the most versatile Wireless
in Local Loop system available today.
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