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Description / Abstract:
INTRODUCTION
General Description
Service Option 4 provides asynchronous (abbreviated as "async"
hereafter) data transmission capability on TIA/EIA/IS-95-A wideband
spread-spectrum cellular systems using the protocols and procedures
defined herein. Service Option 5 provides Group-3 facsimile
(abbreviated as "fax" hereafter) transmission capability for these
systems.
These two Service Options are defined in a single standard
because their user interfaces and associated call control
procedures are similar. This parallels the current trend in analog
modems, which commonly provide both fax and async data services
through the same modem unit.