Packet data, HSCSD, and CSD
With your phone you can use the packet data, high-speed circuit switched data (HSCSD),
and circuit switched data (CSD, GSM data) data services. For availability and subscription
to data services, contact your service provider. See "Modem settings," p. 73.
The use of HSCSD services consumes the phone battery faster than normal voice or
data calls.
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