AT&T has begun to shut off TDMA networks in select cities, notifying TDMA and GAIT users in those markets that they must upgrade their handsets to GSM models. Trial shutdowns have begun with small ...
The DOCSIS 1.0 and 1.1 specifications define the physical-layer RF interfaces for data-over-cable systems. 1 With the success of DOCSIS-based broadband access to homes and businesses, the demand for ...
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