White paper
S312
22
September 2009
SIM AT services supported
Support of compression algorithms Yes, IP header compression
Support of the QoS modification
procedure
Yes, when initiated by the network (not by the phone)
Downlink data rate
Up to 85.6 Kbps for packet data communication, using 4 time slots
in coding scheme CS-4
Uplink data rate
Up to 42.8 Kbps for packet data communication, using 2 time slots
in coding scheme CS-4
Mode of operation
Class B and Class C modes of operation supported
R Reference point
Physical layer: Support of RS232.
PPP is supported as L2 layer in the R reference point.
IP connectivity
PDP type IP is supported.
IP termination in mobile or TE (laptop, PDA) supported.
Application
• WAP over GPRS supported (UDP/IP and GPRS-SMS)
• SMS over GPRS supported (SMS-MT, SMS-MO)
QoS
• QoS negotiation supported. Default requested QoS sent by the
phone at PDP context activation is reliability Class 3
• Peak/Mean/Delay/Precedence
• Class: subscribed
• Precedence class supported (1,2,3)
• Reliability class 1-5 supported
• Delay classes supported (1,2,3,4)
• Mean and peak throughput rate limited by multi slot class 4 and
CS-4
PDP context
• 10 PDP context descriptions are stored in the phone
• PDP context description is edited via application in mobile or
AT-command
• Simultaneous PDP contexts are supported, maximum 2
SIM
GPRS aware, as well as non-GPRS aware, SIM cards are
supported
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CALL CONTROL BY SIM
Yes
DATA DOWNLOAD TO
SIM
Cell Broadcast
SMS
Yes
Yes
Dimension
Support