Specifications

large Þles, images etc.

Cost efÞcient GPRS being an IP-based connection means that a high transmission

capacity is only used when needed. This makes it possible to stay con-

nected via GPRS, whereas keeping a constant circuit switched connec-

tion would be more expensive.

WAP over GPRS Access the Internet via WAP at high speed and with a constant connec-

tion. The user can run the WAP functions, such as browsing, synchro-

nization of calendar and phone book.

SMS over GPRS Users can send and receive messages while connected via GPRS,

which means that they can be constantly available for SMS, broadcast

messages, paging via SMS, e-mail notiÞcation etc.

E-mail over GPRS The e-mail client in the R520 can operate over a GPRS connection.

This means that the user can be connected to the e-mail system while

reading and preparing messages, and that the messages are sent at a

high speed.

GSM Data over GPRS This provides data and Internet/Intranet access, for a PC, PDA or hand-

held device connected via Bluetooth wireless technology or Infrared.

Data rates Multislot class 8 supported.

CS-1, CS-2, CS-3 and CS-4 supported.

9,050 bps, 13,400 bps, 15,600 bps and 21,400 bps supported (network-

dependent).

Downlink data rate Up to 53,600 bps for packet data communication, using 4 time slots.

with V.42bis compression up to four times higher transmission rates.

Uplink data rate Up to 13,400 bps for packet data communication, using 1 time slot.

with V.42bis compression up to four times higher transmission rates.

Mode of operation Class B mode of operation supported.

Network Operation Modes I, II and III handled by mobile.

It is possible for the user to choose which of the Circuit switched and

GPRS services should be favoured.

R Reference point Physical layer: Support of IrDA, Bluetooth 1.0 and RS232.

PPP is supported as L2 layer in the R reference point.

Authentication algorithms PAP and CHAP supported.

IP connectivity PDP type IP is supported.

IP termination in mobile or TE (laptop, PDA) supported.

TCP/IP header compression supported.

Application WAP over GPRS supported (UDP/IP and GPRS-SMS).

SMS over GPRS (SMS-MT, SMS-MO) supported.

QoS QoS negotiation supported.

Reliability class 1-5 supported.

Mean and peak throughput rate limited by multislot class 8 and CS-4.

PDP context 10 PDP context descriptions stored in mobile.

PDP context description is edited via application in mobile, AT-com-

mand or via OTA.

Simultaneous PDP context not supported.

Network requested PDP context not supported.

SIM GPRS aware, as well as GPRS non-aware, SIMs are supported.