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T68i
White Paper, April 2002
63
GPRS technical data
Dimension Support in the T68i
Compatible GPRS and
SMG specifications
ETSI R97 SMG 31 bis
Data rates Multislot class 4 supported (3+1)
CS-1, CS-2, CS-3, CS-4
9,050 bps, 13,400 bps, 15,600 bps, 21,400 bps supported (network-
dependent)
Indicator of attachment to
the GPRS service
Yes, an icon in the bottom left corner, a filled triangle if attached
Indicator of PDP context
activation
Yes, an icon on the right side. Animated globe
Data volume counter • The Data volume counter details the volume of data exchanged in
bytes for the up/down link for last call for each PDP context.
• The Total data counter details the sum of all GPRS sessions (i.e. not
the sum of total data received + sent during the last GPRS session.
The total data counter can be reset by the user.
Medium Access Modes Fixed and dynamic allocation
Support of Packet
Control Channels
(PBCCH/PCCCH)
Yes. Available at launch.
Network operation mode NOM I, II, III
Support of GPRS/CS
combined procedures
Yes
Network control mode NC0
Support of access in 2
phases
Yes
Support of PRACH on 11
bits
Yes
Support of GPRS re-
selection C31/C32
Yes
Support of static and
dynamic addressing
Yes
Support of power control
Uplink and Downlink
Uplink = yes, Downlink is a network feature
Support of ciphering
algorithms
GEA1
Support of compression
algorithms
Yes, V42bis and IP header
compression
Support of the QoS
modification procedure
Yes, when initiated by the network
(not by the handset)