Nokia D211 User manual

DEVELOPER MANUAL
FOR NOKIA D211
TECHNICAL SPECIFICATIONS TO NETWORK
ADMINISTRATORS AND SYSTEM
DEVELOPERS
VERSION 1.1
Copyright © Nokia Corporation 2002. All rights reserved | Date:5.6.2002, ver. 1.1

Contents
1. INTRODUCTION ........................................................................................................... 4
2. CHARACTERISTICS ..................................................................................................... 5
2.1 WLAN ......................................................................................................................... 5
2.1.1 FREQUENCIES ................................................................................................... 5
2.1.2 STANDARDS....................................................................................................... 5
2.1.3 ARCHITECTURE................................................................................................. 6
2.1.4 SERVICES........................................................................................................... 7
2.1.5 WLAN SUMMARY ............................................................................................... 8
2.2 WECA......................................................................................................................... 9
2.2.1 TESTING PROCESS ........................................................................................... 9
2.2.2 FURTHER READING......................................................................................... 10
2.3 GSM ......................................................................................................................... 10
2.3.1 HSCSD .............................................................................................................. 11
2.3.2 GPRS ................................................................................................................ 11
2.3.3 TERMINAL CLASSES ....................................................................................... 13
2.3.4 GPRS SECURITY.............................................................................................. 13
2.3.5 GPRS SUMMARY ............................................................................................. 13
2.4 SMS.......................................................................................................................... 14
2.5 FAX CLASSES ......................................................................................................... 14
3. GENERAL HARDWARE SPECIFICATIONS................................................................ 15
3.1 PRODUCT TYPE...................................................................................................... 15
3.2 ELECTRICAL SPECIFICATIONS ............................................................................. 15
3.3 ABSOLUTE MAXIMUM RATINGS ............................................................................ 15
3.4 RECOMMENDED OPERATING CONDITIONS ........................................................ 15
3.5 EXTERNAL SIGNALS AND CONNECTIONS ........................................................... 15
3.5.1 PC CARD INTERFACE...................................................................................... 16
3.5.2 SIM & SMART CARD......................................................................................... 17
3.6 MECHANICAL SPECIFICATIONS ............................................................................ 17

3.7 ANTENNA................................................................................................................. 17
3.7.1 GSM .................................................................................................................. 17
3.7.2 WLAN ................................................................................................................ 18
3.8 ENVIRONMENTAL SPECIFICATIONS..................................................................... 18
3.9 TYPE APPROVAL AND EMC TESTING................................................................... 19
3.9.1 GSM .................................................................................................................. 19
3.9.2 WLAN ................................................................................................................ 19
3.9.3 ELECTROMAGNETIC COMPATIBILITY (INSIDE EUROPE) ............................ 19
3.9.4 ELECTRICAL SAFETY (INSIDE EUROPE) ....................................................... 19
4. GENERAL SOFTWARE SPECIFICATIONS ................................................................ 20
4.1 SUPPORTED OPERATING SYSTEMS .................................................................... 20
4.2 INSTALLATION SOFTWARE ................................................................................... 20
4.2.1 NORMAL INSTALLATION ................................................................................. 20
4.2.2 INSTALLATION DISK ........................................................................................ 22
4.3 PROFILES ................................................................................................................ 22
4.4 ADVANCED SETTINGS ........................................................................................... 23
4.5 SECURITY................................................................................................................ 29
4.5.1 WEP KEYS ........................................................................................................ 29
4.5.2 VPN ................................................................................................................... 30
4.5.3 PERSONAL FIREWALL..................................................................................... 31
4.6 WLAN COMPATIBILITY............................................................................................ 32
4.6.1 LIST OF TESTED ACCESS POINTS................................................................. 32
4.6.2 KNOWN LIMITATIONS – RECOMMENDED SETTINGS................................... 32
4.7 SOFTWARE INTERFACE......................................................................................... 32
4.8 SIM SERVICES ( NOKIA OPERATOR WIRELESS LAN) ......................................... 35
5. AT COMMANDS.......................................................................................................... 36
5.1 INTRODUCTION ...................................................................................................... 36
5.2 AT COMMAND SYNTAX .......................................................................................... 36
5.2.1 S-REGISTER COMMANDS ............................................................................... 36
5.2.2 BASIC COMMANDS .......................................................................................... 37
5.2.3 EXTENDED COMMANDS ................................................................................. 37
5.3 COMMAND LINE ...................................................................................................... 38
5.4 INFORMATION RESPONSES AND RESULT CODES ............................................. 38
6. LIST OF AT COMMANDS SUPPORTED BY NOKIA D211.......................................... 39

6.1 S REGISTERS.......................................................................................................... 39
6.2 TE-TA INTERFACE COMMANDS ............................................................................ 40
6.3 V.25TER ................................................................................................................... 40
6.3.1 S3 COMMAND LINE TERMINATION CHARACTER.......................................... 40
6.3.2 S4 RESPONSE FORMATTING CHARACTER .................................................. 40
6.3.3 S5 COMMAND LINE EDITING CHARACTER.................................................... 40
6.3.4 E COMMAND ECHO ......................................................................................... 40
6.3.5 Q RESULT CODE SUPPRESSION ................................................................... 41
6.3.6 V DCE RESPONSE FORMAT ........................................................................... 41
6.3.7 X RESULT CODE SELECTION AND CALL PROGRESS MONITORING
CONTROL ................................................................................................................... 41
6.3.8 &C CIRCUIT 109 (RECEIVED LINE SIGNAL DETECTOR) BEHAVIOUR ......... 41
6.3.9 &D CIRCUIT 108 (DATA TERMINAL READY) BEHAVIOUR ............................. 42
6.3.10 +IPR FIXED DTE RATE.................................................................................. 42
6.3.11 +ICF CHARACTER FRAMING........................................................................ 42
6.3.12 +IFC DTE-DCE LOCAL FLOW CONTROL ..................................................... 43
6.3.13 +ILRR DTE-DCE LOCAL RATE REPORTING ................................................ 43
6.4 DE FACTO................................................................................................................ 44
6.4.1 S25 DETECT DTR CHANGE TIME ................................................................... 44
6.4.2 &S DSR SIGNAL BEHAVIOUR.......................................................................... 44
6.4.3 &K SELECT FLOW CONTROL.......................................................................... 44
7. GENERIC COMMANDS .............................................................................................. 45
7.1 V.25TER ................................................................................................................... 45
7.1.1 Z RESET TO DEFAULT CONFIGURATION ...................................................... 45
7.1.2 &F SET TO FACTORY-DEFINED CONFIGURATION ....................................... 45
7.1.3 I REQUEST IDENTIFICATION INFORMATION................................................. 46
7.1.4 +GMI REQUEST TA MANUFACTURER IDENTIFICATION............................... 46
7.1.5 +GMM REQUEST TA MODEL IDENTIFICATION.............................................. 46
7.1.6 +GMR REQUEST TA REVISION IDENTIFICATION.......................................... 46
7.1.7 +GSN REQUEST TA SERIAL NUMBER IDENTIFICATION .............................. 47
7.1.8 +GCAP REQUEST COMPLETE CAPABILITIES LIST....................................... 47
7.2 DE FACTO................................................................................................................ 47
7.2.1 &V VIEW CONFIGURATION ............................................................................. 47
7.2.2 &W STORE CONFIGURATION ......................................................................... 47

7.2.3 &Y SELECT POWER-UP CONFIGURATION .................................................... 48
7.3 GSM 07.07................................................................................................................ 48
7.3.1 +CGMI REQUEST ME MANUFACTURER IDENTIFICATION ........................... 48
7.3.2 +CGMM REQUEST ME MODEL IDENTIFICATION .......................................... 48
7.3.3 +CGMR REQUEST ME REVISION IDENTIFICATION....................................... 48
7.3.4 +CGSN REQUEST ME SERIAL NUMBER IDENTIFICATION ........................... 48
7.3.5 +CSCS SELECT TE CHARACTER SET............................................................ 49
7.3.6 +WS46 SELECT WIRELESS NETWORK.......................................................... 49
8. CALL CONTROL COMMANDS ................................................................................... 50
8.1 V.25TER ................................................................................................................... 50
8.1.1 D DIAL ............................................................................................................... 50
8.1.2 T SELECT TONE DIALLING.............................................................................. 52
8.1.3 P SELECT PULSE DIALLING............................................................................ 52
8.1.4 A ANSWER........................................................................................................ 52
8.1.5 H HOOK CONTROL .......................................................................................... 52
8.1.6 O RETURN TO ONLINE DATA STATE ............................................................. 53
8.1.7 S0 AUTOMATIC ANSWER................................................................................ 53
8.1.8 S6 PAUSE BEFORE BLIND DIALLING ............................................................. 53
8.1.9 S7 CONNECTION COMPLETION TIMEOUT .................................................... 53
8.1.10 S8 COMMA DIAL MODIFIER TIME ................................................................ 54
8.1.11 S10 AUTOMATIC DISCONNECT DELAY....................................................... 54
8.1.12 L MONITOR SPEAKER LOUDNESS .............................................................. 54
8.1.13 M MONITOR SPEAKER MODE...................................................................... 54
8.1.14 +DS DATA COMPRESSION........................................................................... 54
8.1.15 +DR DATA COMPRESSION REPORTING..................................................... 55
8.2 DE FACTO................................................................................................................ 55
8.2.1 B CCITT/BELL MODE........................................................................................ 55
8.2.2 S1 RING COUNT............................................................................................... 55
8.2.3 S2 ESCAPE CODE CHARACTER..................................................................... 56
8.2.4 S12 ESCAPE GUARD TIME.............................................................................. 56
8.2.5 ESCAPE SEQUENCE ....................................................................................... 56
8.3 GSM 07.07................................................................................................................ 56
8.3.1 +CSTA SELECT TYPE OF ADDRESS .............................................................. 56
8.3.2 +CMOD CALL MODE ........................................................................................ 57

8.3.3 +CHUP HANGUP CALL..................................................................................... 57
8.3.4 +CBST SELECT BEARER SERVICE TYPE ...................................................... 57
8.3.5 +CRLP RADIO LINK PROTOCOL ..................................................................... 58
8.3.6 +CR SERVICE REPORTING CONTROL........................................................... 59
8.3.7 +CEER EXTENDED ERROR REPORT ............................................................. 59
8.3.8 +CRC CELLULAR RESULT CODES ................................................................. 59
8.3.9 +CSNS SINGLE NUMBERING SCHEME .......................................................... 59
8.3.10 +CHSR HSCSD PARAMETERS REPORT ..................................................... 60
8.3.11 +CHSD HSCSD DEVICE PARAMETERS....................................................... 60
8.3.12 +CHSN HSCSD NON-TRANSPARENT CALL CONFIGURATION.................. 60
8.3.13 +CHSC HSCSD CURRENT CALL PARAMETERS ......................................... 61
8.3.14 +CV120 V.120 RATE ADAPTION PROTOCOL .............................................. 61
8.3.15 +CVHU VOICE HANGUP CONTROL ............................................................. 62
9. NETWORK SERVICE COMMANDS (GSM 07.07)....................................................... 63
9.1.1 +CREG NETWORK REGISTRATION................................................................ 63
9.1.2 +COPS OPERATOR SELECTION..................................................................... 63
9.1.3 +CLCK FACILITY LOCK.................................................................................... 64
9.1.4 +CPWD CHANGE PASSWORD ........................................................................ 64
9.1.5 +CLIP CALLING LINE IDENTIFICATION PRESENTATION .............................. 65
9.1.6 +CLIR CALLING LINE IDENTIFICATION RESTRICTION.................................. 65
9.1.7 +COLP CONNECTED LINE IDENTIFICATION PRESENTATION ..................... 65
9.1.8 +CCFC CALL FORWARDING NUMBER AND CONDITIONS............................ 66
9.1.9 +CCWA CALL WAITING.................................................................................... 66
9.1.10 +CHLD CALL RELATED SUPPLEMENTARY SERVICES.............................. 67
9.1.11 +CUSD UNSTRUCTURED SUPPLEMENTARY SERVICE DATA .................. 67
9.1.12 +CAOC ADVICE OF CHARGE ....................................................................... 68
9.1.13 +CSSN SUPPLEMENTARY SERVICE NOTIFICATIONS............................... 68
10. ME CONTROL AND STATUS COMMANDS (GSM 07.07) .......................................... 69
10.1.1 +CPIN ENTER PIN ......................................................................................... 69
10.1.2 +CBC BATTERY CHARGE............................................................................. 69
10.1.3 +CSQ SIGNAL QUALITY ................................................................................ 69
10.1.4 +CPBS SELECT PHONEBOOK MEMORY STORAGE .................................. 69
10.1.5 +CPBR READ PHONEBOOK ENTRIES ......................................................... 70
10.1.6 +CPBF FIND PHONEBOOK ENTRIES ........................................................... 70

10.1.7 +CPBW WRITE PHONEBOOK ENTRY .......................................................... 70
11. ME ERROR COMMAND (GSM 07.07)......................................................................... 71
11.1.1 +CMEE REPORT MOBILE EQUIPMENT ERROR.......................................... 71
11. SMS COMMANDS (GSM 07.05).................................................................................. 71
11.1.2 +CSMS SELECT MESSAGE SERVICE.......................................................... 71
11.1.3 +CPMS PREFERRED MESSAGE STORAGE................................................ 71
11.1.4 +CMGF MESSAGE FORMAT......................................................................... 72
11.1.5 +CSCA SERVICE CENTRE ADDRESS.......................................................... 72
11.1.6 +CSMP SET TEXT MODE PARAMETERS..................................................... 72
11.1.7 +CSDH SHOW TEXT MODE PARAMETERS................................................. 72
11.1.8 +CSCB SELECT CELL BROADCAST MESSAGE TYPES ............................. 72
11.1.9 +CSAS SAVE SETTINGS ............................................................................... 73
11.1.10 +CRES RESTORE SETTINGS ....................................................................... 73
11.1.11 +CNMI NEW MESSAGE INDICATIONS TO TE.............................................. 73
11.1.12 +CMGL LIST MESSAGES .............................................................................. 74
11.1.13 +CMGR READ MESSAGE.............................................................................. 74
11.1.14 +CNMA NEW MESSAGE ACKNOWLEDGEMENT TO ME/TA ....................... 75
11.1.15 +CMGS SEND MESSAGE.............................................................................. 75
11.1.16 +CMSS SEND MESSAGE FROM STORAGE................................................. 75
11.1.17 +CMGW WRITE MESSAGE TO MEMORY..................................................... 76
11.1.18 +CMGD DELETE MESSAGE.......................................................................... 76
11.1.19 +CMGC SEND COMMAND ............................................................................ 76
11.1.20 +CMMS MORE MESSAGES TO SEND.......................................................... 76
12. FAX COMMANDS........................................................................................................ 77
12.1 ALL CLASSES ...................................................................................................... 77
12.1.1 +FCLASS DCE MODE SELECT ..................................................................... 77
12.1.2 +FLO SELECT FLOW CONTROL................................................................... 77
12.1.3 +FPR SERIAL PORT RATE CONTROL.......................................................... 77
12.2 CLASS 1 ............................................................................................................... 77
12.2.1 +FDD DOUBLE ESCAPE CHARACTER REPLACEMENT ............................. 78
12.2.2 +FMI REQUEST MANUFACTURER ID .......................................................... 78
12.2.3 +FMM REQUEST MODEL ID.......................................................................... 78
12.2.4 +FMR REQUEST REVISION ID...................................................................... 78
12.2.5 +FRH RECEIVE HDLC DATA WITH A SUPPORTED CARRIER.................... 78

12.2.6 +FRM RECEIVE DATA WITH A SUPPORTED CARRIER .............................. 79
12.2.7 +FRS RECEIVE SILENCE .............................................................................. 79
12.2.8 +FTH TRANSMIT HDLC DATA WITH A SUPPORTED CARRIER.................. 79
12.2.9 +FTM TRANSMIT DATA WITH A SUPPORTED CARRIER............................ 79
12.2.10 +FTS TRANSMIT SILENCE............................................................................ 79
12.3 CLASS 2 ............................................................................................................... 80
12.3.1 +FAA ADAPTIVE ANSWER............................................................................ 80
12.3.2 +FAXERR FAX ERROR VALUE PARAMETER .............................................. 80
12.3.3 +FBADLIN RTN THRESHOLD NUMBER OF CONSECUTIVE BAD LINES FOR
FCQ 80
12.3.4 +FBADMUL RTN THRESHOLD ERROR RATE MULTIPLIER FOR FCQ ....... 80
12.3.5 +FBOR DATA BIT ORDER ............................................................................. 80
12.3.6 +FBUF DCE'S DATA BUFFER CHARACTERISTICS ..................................... 81
12.3.7 +FBUG SESSION MESSAGE REPORTING................................................... 81
12.3.8 +FCIG LOCAL POLLING ID STRING.............................................................. 81
12.3.9 +FCQ QUALITY CHECKING .......................................................................... 81
12.3.10 +FCR CAPABILITY TO RECEIVE................................................................... 81
12.3.11 +FCTCRTY ECM RETRY COUNT.................................................................. 82
12.3.12 +FDCC CAPABILITIES PARAMETERS.......................................................... 82
12.3.13 +FDCS NEGOTIATED CURRENT SESSION PARAMETERS........................ 82
12.3.14 +FDFFC DATA ENCODING FORMAT CONVERSION PARAMETER ............ 82
12.3.15 +FDIS CURRENT SESSION PARAMETERS ................................................. 83
12.3.16 +FDR RECEIVE PHASE C DATA ................................................................... 83
12.3.17 +FDT TRANSMIT PHASE C DATA................................................................. 83
12.3.18 +FECM ECM CONTROL PARAMETER.......................................................... 83
12.3.19 +FET TRANSMIT PAGE PUNCTUATION....................................................... 84
12.3.20 +FK TERMINATE SESSION ........................................................................... 84
12.3.21 +FLID LOCAL ID STRING............................................................................... 84
12.3.22 +FLNFC PAGE LENGTH FORMAT CONVERSION PARAMETER................. 84
12.3.23 +FLPL INDICATE A DOCUMENT TO POLL ................................................... 84
12.3.24 +FMDL REQUEST MODEL ID........................................................................ 85
12.3.25 +FMFR REQUEST MANUFACTURER ID....................................................... 85
12.3.26 +FMINSP MINIMUM ACCEPTABLE PHASE C SPEED.................................. 85
12.3.27 +FPHCTO PHASE C RESPONSE TIMEOUT ................................................. 85

12.3.28 +FPTS PAGE TRANSMISSION STATUS PARAMETER ................................ 85
12.3.29 +FRBC PHASE C RECEIVE DATA BLOCK SIZE........................................... 86
12.3.30 +FREL PHASE C RECEIVED EOL ALIGNMENT CONTROL PARAMETER .. 86
12.3.31 +FREV REQUEST REVISION ID.................................................................... 86
12.3.32 +FSPL REQUEST TO POLL........................................................................... 86
12.3.33 +FTBC PHASE C TRANSMIT DATA BLOCK SIZE......................................... 86
12.3.34 +FVRFC VERTICAL RESOLUTION FORMAT CONVERSION ....................... 87
12.3.35 +FWDFC PAGE WIDTH FORMAT CONVERSION ......................................... 87
12.4 CLASS 2.0............................................................................................................. 88
12.4.1 +FAA ADAPTIVE ANSWER............................................................................ 88
12.4.2 +FBO DATA BIT ORDER................................................................................ 88
12.4.3 +FBS BUFFER SIZE....................................................................................... 88
12.4.4 +FBU HDLC FRAME REPORTING................................................................. 88
12.4.5 +FCC CAPABILITIES PARAMETERS ............................................................ 89
12.4.6 +FCQ COPY QUALITY CHECKING ............................................................... 89
12.4.7 +FCR CAPABILITY TO RECEIVE................................................................... 89
12.4.8 +FCS CURRENT SESSION RESULTS .......................................................... 89
12.4.9 +FCT PHASE C RESPONSE TIMEOUT......................................................... 90
12.4.10 +FDR RECEIVE PHASE C DATA ................................................................... 90
12.4.11 +FDT TRANSMIT PHASE C DATA................................................................. 90
12.4.12 +FEA PHASE C RECEIVE EOL ALIGNMENT ................................................ 90
12.4.13 +FFC DATA ENCODING FORMAT CONVERSION........................................ 90
12.4.14 +FHS CALL TERMINATION STATUS............................................................. 91
12.4.15 +FIE PROCEDURE INTERRUPT ENABLE..................................................... 91
12.4.16 +FIP INITIALIZE FACSIMILE PARAMETERS................................................. 91
12.4.17 +FIS CURRENT SESSION PARAMETERS .................................................... 91
12.4.18 +FKS TERMINATE SESSION......................................................................... 92
12.4.19 +FLI LOCAL ID STRING ................................................................................. 92
12.4.20 +FLP INDICATE A DOCUMENT TO POLL ..................................................... 92
12.4.21 +FMI REQUEST MANUFACTURER ID .......................................................... 92
12.4.22 +FMM REQUEST MODEL ID.......................................................................... 92
12.4.23 +FMR REQUEST REVISION ID...................................................................... 93
12.4.24 +FMS MINIMUM PHASE C SPEED................................................................ 93
12.4.25 +FNR NEGOTIATION MESSAGE REPORTING............................................. 93

12.4.26 +FNS NON-STANDARD FRAME FIF OCTET STRING .................................. 93
12.4.27 +FPI LOCAL POLLING ID STRING ................................................................ 93
12.4.28 +FPP PACKET PROTOCOL COMMAND ....................................................... 94
12.4.29 +FPS PAGE STATUS..................................................................................... 94
12.4.30 +FRQ RECEIVE QUALITY THRESHOLD....................................................... 94
12.4.31 +FRY ECM RETRY COUNT ........................................................................... 94
12.4.32 +FSP REQUEST TO POLL............................................................................. 94
13. VOICE COMMANDS (PN-3131) .................................................................................. 95
13.1.1 +FCLASS DCE MODE.................................................................................... 95
13.1.2 +VTS DTMF GENERATION............................................................................ 95
14. GPRS COMMANDS (GSM 07.07) ............................................................................... 96
14.1.1 +CGDCONT DEFINE PDP CONTEXT............................................................ 96
14.1.2 +CGQREQ QUALITY OF SERVICE PROFILE (REQUESTED) ...................... 96
14.1.3 +CGQMIN QUALITY OF SERVICE PROFILE (MINIMUM ACCEPTABLE) ..... 97
14.1.4 +CGATT GPRS ATTACH OR DETACH.......................................................... 97
14.1.5 +CGACT PDP CONTEXT ACTIVATE OR DEACTIVATE................................ 97
14.1.6 +CGDATA ENTER DATA STATE ................................................................... 98
15. MISCELLANEOUS COMMANDS ................................................................................ 98
15.1 V.25TER................................................................................................................ 98
15.1.1 A/ REPEAT LAST COMMAND LINE ............................................................... 98
15.2 NMP SPECIFIC..................................................................................................... 98
15.2.1 S47 FORCE FAX CLASS 2/2.0 ERROR CORRECTION MODE..................... 98
15.2.2 S48 FORCE FAX 14.4KB................................................................................ 99
16. RESULT CODES......................................................................................................... 99
16.1 V.25TER................................................................................................................ 99
16.1.1 BASIC SYNTAX RESULT CODES.................................................................. 99
16.1.2 +DR DATA COMPRESSION REPORT ........................................................... 99
16.1.3 +ILRR DTE-DCE LOCAL RATE REPORT ...................................................... 99
16.2 DE FACTO .......................................................................................................... 100
16.2.1 CALL REPEAT RESTRICTION RESULT CODES ........................................ 100
16.3 GSM 07.07 .......................................................................................................... 100
16.3.1 +CSSI INTERMEDIATE SUPPLEMENTARY SERVICE NOTIFICATION...... 100
16.3.2 +COLP CONNECTED LINE IDENTIFICATION REPORT ............................. 100
16.3.3 +CR DATA SERVICE REPORT.................................................................... 100

16.3.4 +CRING DISTINCTIVE RING........................................................................ 100
16.3.5 +CLIP CALLING LINE IDENTIFICATION REPORT ...................................... 101
16.3.6 +CSSU UNSOLICITED SUPPLEMENTARY SERVICE NOTIFICATION....... 101
16.3.7 +CCWA CALL WAITING............................................................................... 101
16.3.8 +CREG NETWORK REGISTRATION........................................................... 101
16.3.9 +CUSD NETWORK INITIATED UNSTRUCTURED SUPPLEMENTARY
SERVICE DATA......................................................................................................... 102
16.3.10 +CME ERROR MOBILE EQUIPMENT ERROR ............................................ 102
16.3.11 +CHSR HSCSD PARAMETERS REPORT ................................................... 102
16.4 GSM 07.05 .......................................................................................................... 102
16.4.1 +CMTI NEW SMS-DELIVER INDICATION.................................................... 102
16.4.2 +CMT NEW SMS-DELIVER.......................................................................... 103
16.4.3 +CBM NEW CBM.......................................................................................... 103
16.4.4 +CDSI NEW SMS-STATUS-REPORT INDICATION..................................... 103
16.4.5 +CDS NEW SMS-STATUS-REPORT ........................................................... 103
16.4.6 +CMS ERROR MESSAGE SERVICE FAILURE ........................................... 104
16.5 PN-3131 .............................................................................................................. 104
16.5.1 +VCID CALLING LINE IDENTIFICATION REPORT...................................... 104
16.5.2 IN-BAND EVENTS FROM DCE TO DTE ...................................................... 104
17. ERROR VALUES....................................................................................................... 105
17.1 +CME ERROR VALUES ..................................................................................... 105
17.2 +CMS ERROR VALUES ..................................................................................... 106
18. CIRCUITS.................................................................................................................. 107
19. FAX CLASS 2 RESPONSES ..................................................................................... 108
20. FAX CLASS 2.0 RESPONSES .................................................................................. 109
21. SUPPORTED AT COMMAND STANDARDS............................................................. 109
21.1 SUPPORTED STANDARDS ............................................................................... 109
22. ABBREVIATIONS...................................................................................................... 110
23. DEVELOPER SUPPORT........................................................................................... 111
24. REFERENCES .......................................................................................................... 112

Legal Notice
Copyright © Nokia Corporation 2002. All rights reserved.
Reproduction, transfer, distribution or storage of part or all of the contents in this document in any form without the
prior written permission of Nokia is prohibited.
Nokia and Nokia Connecting People are registered trademarks of Nokia Corporation. Other product and company
names mentioned herein may be trademarks or tradenames of their respective owners.
Nokia operates a policy of continuous development. Nokia reserves the right to make changes and improvements
to any of the products described in this document without prior notice.
Under no circumstances shall Nokia be responsible for any loss of data or income or any special, incidental,
consequential or indirect damages howsoever caused.
The contents of this document are provided "as is". Except as required by applicable law, no warranties of any
kind, either express or implied, including, but not limited to, the implied warranties of merchantability and fitness
for a particular purpose, are made in relation to the accuracy, reliability or contents of this document. Nokia
reserves the right to revise this document or withdraw it at any time without prior notice.

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For your safety
Read these simple guidelines. Breaking the rules may be dangerous or illegal. Further
detailed information is given in this manual.
Do not switch the radio card on when wireless equipment use is prohibited or
when it may cause interference or danger.
Road safety comes first
Don’t use the radio card while driving.
Interference
All radio cards may get interference, which could affect performance.
Switch off in hospitals
Follow any regulations or rules. Switch the radio card off near medical equipment.
Switch off in aircraft
Wireless devices can cause interference in aircraft.
Switch off when refuelling
Don’t use the radio card at a refuelling point. Do not use near fuel or chemicals.
Switch off near blasting
Don’t use the radio card where blasting is in progress. Observe restrictions, and
follow any regulations or rules.
Use sensibly
Use only in the normal position. Don’t touch the antenna unnecessarily.
Qualified service
Only qualified personnel may repair radio card equipment.

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Accessories
Use only approved accessories. Do not connect incompatible products.
Water-resistance
Your radio card is not water-resistant. Keep it dry.
Backup copies
Remember to make backup copies of all important data.
Connecting to other devices
When connecting to any other device, read its user's guide for detailed safety
instructions. Do not connect incompatible products.

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1. INTRODUCTION
The Nokia D211 combines GSM/HSCSD/GPRS and WLAN in one PC card /11/. It includes a
GSM transceiver with built-in data capabilities, SIM card reader, antenna and PC Card
interface in a very compact package. The functionality of the Nokia D211 can be controlled
by the host unit using AT commands. The Nokia D211 can be plugged into computers or
other devices having a PC card type II slot, or integrated into vertical solutions such as
vending machines or security systems.
With the Nokia D211 you have access to the data functionality of GSM and WLAN networks.
Short message (SM), connection oriented data and facsimile services can be used. The
Nokia D211 is a dual band PC card transceiver designed for operation in EGSM 900, GSM
1800 and GSM900/1800 dual band networks. It supports:
• High Speed Circuit Switched Data (HSCSD), which offers data rates of up to 43.2 kbit/s
by using multiple receive and transmit time slots.
• General Packet Radio Service (GPRS), which offers data rates of up to 64.2 kbit/s by
using multiple receive and transmit time slots.
• Wireless Local Area Network (IEEE 802.11b), which offers data rates of up to 11 Mbit/s
by using 2.4GHz license free ISM band.
This document describes the interfaces of the Nokia D211 and the details required for
implementing a functional interface to the Nokia D211. Both hardware and software issues
are included in this document.

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2. CHARACTERISTICS
2.1 WLAN
Wireless LANs (WLAN) were originally designed to be used as an extension or as an
alternative to fixed LANs in order to avoid cabling costs, for example. Today, WLANs are
rapidly gaining significance, as mobile devices, such as laptop computers, are replacing
desktop personal computers. At the same time, major advances in the WLAN technology
have taken place. The overall trend is towards higher bit rates, interoperable networking with
other systems, compatible standards, and interoperable products between different WLAN
product manufacturers.
2.1.1 Frequencies
Traditional cellular systems operate on licensed frequency bands. Operators are given a
certain piece of spectrum from the total spectrum allocation to a particular system for their
sole use. This scheme works nicely with systems covering large areas, such as GSM.
However, given the limited amount of spectrum this means that only a few operators can
have licenses per a given geographical area. For WLANs licensed frequencies clearly are
not a feasible solution since by their nature these systems are operated, for example, by
companies or individuals in a limited geographical area, such as a building. Therefore, pico
cell networks and personal area networks operate on unlicensed spectrum. This means that
a certain piece of spectrum is available for a set of systems/technologies, provided that they
fulfil certain agreed, very basic requirements, like maximum allowed transmit power. This
means that the operating environment, and the related problems, are very different
compared to traditional cellular networks.
2.1.2 Standards
IEEE initiated the 802.11 /24/ working group in 1990 to develop a WLAN standard for the 2.4
GHz unlicensed ISM (Industrial, Scientific, and Medical) frequency band that is available
globally (with some national and regional limitations). The IEEE 802.11 standard was
approved in 1997, and the first products appeared roughly at the same time.
Like IEEE 802.3 (Ethernet) or 802.5 (Token Ring) also 802.11 only covers the
two lowest layers of the OSI reference model. 802.11 reference model consists
of two main parts, MAC (Medium Access Control) and PHY (Physical) layers.
MAC functions on the Data Link layer and PHY on the Physical layer of the OSI
model.
Currently, the IEEE 802.11 family of standards includes specifications for five different types
of physical layers. Four of these are based on radio technologies and one on diffuse infrared
technology. All physical layer alternatives utilise the same MAC protocol. Three of the radio
PHY standards utilise the 2.4 GHz frequency band and one is designed for the 5 GHz
frequency band.
IEEE 802.11b /25/, the current industry standard that the vast majority of the current WLAN
products -- including the Nokia D211 – support, specifies a 2.4 GHz radio that utilises Direct

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Sequence Spread Spectrum (DSSS) technology. IEEE 802.11b offers 5.5 and 11 Mbit/s
physical data rates. The multirate control of 802.11 MAC protocol allows a terminal to switch
from the 11 Mbit/s link speed down to 5.5 and even further down to 2 and 1 Mbit/s if the radio
channel quality for some reason cannot accommodate higher data rates.
The fundamental access method of 802.11 MAC is distributed coordination function (DCF)
known as the carrier sense multiple access with collision avoidance, or CSMA/CA. It is
implemented in all stations for use both within independent and infrastructure networks.
CSMA/CA is a “listen before you talk” algorithm – similar to the protocol used in fixed
Ethernet -- where the station wishing to transmit senses the transmission medium to
determine whether it is idle or busy. If the medium is not busy the transmission may proceed.
If the medium is busy the station defers until the end of the current transmission. After
deferral or prior to attempting to transmit again immediately after a successful transmission,
the station must select a random backoff interval before it starts the transmission. This
reduces the probability of a collision at a point where it would most likely occur. This moment
is just after the medium becomes free after transmission. Random backoff of different
stations ensures that not all the stations begin transmission immediately.
The transmission time is limited to ensure fair access to the channel for all the stations.
There has to be a gap of some minimum duration (Interframe Space) between two
transmissions from one station.
2.1.3 Architecture
The standard defines the logical architecture of an 802.11 network. The architectural basic
components are the station, wireless medium, access point (AP), distribution system and
portal. These components are used to form the 802.11 network. There are two fundamental
alternatives for the 802.11 architecture, namely independent (ad hoc) and infrastructure
networks. These are depicted in Figure 1 and Figure 2 respectively.
STA 1
STA 2
STA 3
STA 4
BSS 1
BSS 2
Figure 1. Independent networks BSS1 and BSS2.

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STA 1
STA 2
AP
DS
STA 3
AP
STA 4
BSS 1
BSS 2
ESS
802.X LAN
Portal
Figure 2. Infrastructure network (ESS).
An independent network, or BSS (Basic Service Set), consists of two or more stations that
communicate directly with each other through the wireless medium. This kind of network can
also be referred to as an ad hoc network. Physical limitations determine the direct station-to-
station distance that can be supported. For some networks this distance is adequate, other
networks require increased coverage.
An infrastructure network, or ESS (Extended Service Set), is constructed from multiple BSSs,
access points and a distribution system (DS).
DS enables mobile device support by providing the logical services necessary to handle
address to destination mapping and seamless integration of multiple BSSs. DS extends the
network and enables communication between stations that are too far from each other to
communicate directly.
An access point has station functionality and provides access to the distribution service. Data
moves between the BSS and DS via an access point.
The key concept of ESS is that it appears to the LLC layer as an independent network.
Stations within an ESS can communicate with the other stations, and mobile stations may
move from one BSS to other BSSs within the same ESS transparently to LLC. 802.11 does
not assume anything about the physical locations of the architectural components.
Integration with the existing wired LANs is possible through a portal. Portal is the logical point
at which MSDUs (MAC Service Data Unit) from a non-802.11 wired LAN enter the 802.11
DS. A portal can be implemented in the same physical device as an access point, but not
necessarily. Portal is not equivalent to a traditional bridge in the strict sense, since a bridge is
used to connect similar MAC layers.
2.1.4 Services
The 802.11 architecture allows for the possibility that the DS may not be identical to an
existing wired LAN. DS can be implemented with many different technologies, including
current 802.X wired LANs. 802.11 does not constrain the DS to be either Data Link or
Network layer based. Nor does 802.11 constrain the DS to be either centralized or distributed
in nature. Instead of specific implementation, 802.11 defines services. There are two
categories of 802.11 services: Station Services (SS) and Distribution System Services
(DSS). Both categories are used by the 802.11 MAC layer.

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Station services support transport of MSDUs between stations within the same BSS. They
are present in every 802.11 station. The station service subset is
a) Authentication
b) Deauthentication
c) Privacy
d) MSDU delivery
Distribution system services are provided by the DS and they enable the MAC to transport
MSDUs between BSSs within an ESS. The DSS service subset is
a) Association
b) Disassociation
c) Distribution
d) Integration
e) Reassociation
Distribution delivers MSDUs within the DS. It is the job of the DS to deliver the message in
such a way that it arrives at the appropriate DS destination for the intended recipient. The
necessary information for the message distribution is provided by the three association
related services.
Integration enables delivery of MSDUs between the DS and an existing wired network. The
message is delivered via the portal and the integration service is responsible for
accomplishing whatever is needed to deliver a message from the DS to the wired LAN
media.
The different association services support different categories of mobility. The basic
association service establishes association between a station and an access point. The
information is needed for the message delivery via DS. At any time, a station may be
associated with no more than one access point, while an access point may be associated
with many stations at a time. Association is always initiated by the mobile station.
Reassociation enables the transfer of an existing association from one access point to
another within an ESS. Reassociation also enables changing of attributes of an established
association while a station remains associated with the same access point. The existing
connections must be maintained during the reassociation.
Disassociation voids an existing association. It can be invoked by either party of the
association and cannot be refused by the other party.
Authentication is used when stations identify each other. Since wireless media is not
bounded like wired 802.11, it supports several authentication processes although it does not
mandate the use of any particular authentication service. 802.11 provides link level
authentication between stations. It does not provide end-to-end or user-to-user
authentication. 802.11 authentication is simply used to bring the wireless link up to the
assumed physical standards of a wired link. 802.11 also supports shared key authentication
with the WEP (Wired Equivalent Privacy) option. Authentication is void by Deauthentication.
Privacy is closely related to authentication. This service is used to prevent the contents of
messages from being read by anybody else than the intended recipient.
2.1.5 WLAN Summary
The Nokia D211 supports the IEEE 802.11b standard that is the industry de facto standard.
The maximum data rate is 11 Mbit/s. The Nokia D211 operates on the 2.4 GHz ISM
frequency band.

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2.2 WECA
A few years ago several WLAN standards and proprietary implementations were competing
at the same marketplace. WLAN networking components from one vendor would only work
with WLAN terminal equipment from the same manufacturer. In other words, customers
could not go and purchase a wireless access point (a wireless network hub) from one vendor
and use a wireless network adapter from another vendor in the same installation. This was
widely recognized as being the main limiting factor preventing wide scale market acceptance
of the WLAN technology. The situation effectively limited the WLAN usage to a certain niche
market segments where multi-vendor capability was not of primary concern.
In 1999, Wireless Ethernet Compatibility Alliance (WECA) was formed to tackle the
interoperability problem by supporting the recently approved IEEE 802.11b standard and by
testing and certifying WLAN multi-vendor interoperability. The founding members of the
group include 3Com, Aironet (now part of Cisco systems), Intersil (formerly Harris
Semiconductors), Lucent Technologies (now Agere systems), Nokia, and Symbol
Technology. It is notable that today WECA has approximately 140 member companies.
In addition to certifying the interoperability of Wi-Fi™ (IEEE 802.11) products, WECA’s
mission includes the promotion of Wi-Fi™ as the global wireless LAN standard across all
market segments.
Today, it is clear that the improved compatibility between different manufacturers’ WLAN
devices together with marketing activities have significantly fostered the overall WLAN
market growth, which in turn has lead to lower device costs to end users, thus further
increasing the potential market size.
2.2.1 Testing Process
WECA’s interoperability certification process can be divided into two main parts:
1) Definition of the test specifications and
2) Testing of the products from various manufacturers against the test
specifications to make sure that products conform to the Wi-Fi™ standard
Agilent Technologies Interoperability Certification Lab (Agilent ICL) (former Silicon Valley
Networking Labs) performs the WECA testing. Agilent's ICL is operating as an independent
test facility. However, only WECA members can submit products to the lab for Wi-Fi™
interoperability testing.
When a product meets the interoperability requirements as described in the WECA test
matrix, Agilent's ICL notifies WECA. WECA then grants a certification of interoperability,
which allows the vendor to use the Wi-Fi logo on advertising and packaging for the certified
product. The Wi-Fi logo is shown in Figure 3.
Figure 3: Wi-Fi™ logo.
The idea is that the Wi-Fi seal of approval assures the end customer of the interoperability
with other network cards and access points which also bear the Wi-Fi logo.
The Nokia D211 is Wi-Fi compliant.