Document Outline

• GM47/GM48
  • Contents
    • Part 1: Overview 11
    • Part 2: Developer’s Kit 23
    • Part 3: Integrating the Module 37
    • Part 4: Using AT Commands 79
  • Part 1: Overview
    • 1. Introduction
      • 1.1 Target Users
      • 1.2 Prerequisites
      • 1.3 Manual Structure
        • Part 1- Overview
        • Part 2 - Developer’s Kit
        • Part 3 - Integrating the Module
        • Part 4 - Using AT Commands
    • 2. GM47/GM48 Modules
      • 2.1 About the GM47/GM48 Family
      • 2.2 GM47 in a Communication System
      • 2.3 Features
        • 2.3.1 Types of Mobile Station
        • 2.3.2 Short Message Service
        • 2.3.3 Voice Calls
        • 2.3.4 Data
        • 2.3.5 SIM Card
        • 2.3.6 Average Power Consumption
        • 2.3.7 Other Features
      • 2.4 Service and Support
        • 2.4.1 Web Pages
        • 2.4.2 Integrator’s Manual
        • 2.4.3 Developer’s Kit
      • 2.5 Precautions
    • 3. Abbreviations
  • Part 2: Developer’s Kit
    • 1. Introduction
      • 1.1 Overview
      • 1.2 Contents of the Kit
      • 1.3 General Functioning of the Kit
    • 2. Using the Developer’s Kit
      • 2.1 Start up Check List
      • 2.2 Developer’s Board Overlay
      • 2.3 Jumpers, Switches and Connectors
      • 2.4 System Connector Pin Assignments
  • Part 3: Integrating the Module
    • 1. Mechanical Description
      • 1.1 Interface Description
      • 1.2 Physical Dimensions
    • 2. System Connector Interface
      • 2.1 Overview
      • 2.2 General Electrical and Logical Characteristics
        • 2.2.1 General Protection Requirements
      • 2.3 Grounds
        • 2.3.1 Analogue Ground - AGND
        • 2.3.2 Digital Ground - DGND
      • 2.4 VCC - Regulated Power Supply Input
      • 2.5 ON/OFF and External Power Signal
        • 2.5.1 Switching the module ON and OFF
        • 2.5.2 VIO - 2.75V Supply
      • 2.6 Analogue Audio
        • Hands-free Mode
        • Portable Hands-free Mode
        • 2.6.1 Audio To Mobile Station - ATMS
        • 2.6.2 Audio From Mobile Station - AFMS
        • 2.6.3 Microphone Signals
        • 2.6.4 Speaker Signals
      • 2.7 PCM Digital Audio
        • Electrical characteristics
        • 2.7.1 PCM Data Format
          • 13-Bit PCM Mode
          • 16-Bit PCM Mode
          • PCM Timing Diagrams
      • 2.8 Serial Data Interfaces
        • 2.8.1 UART1 (RS232) - RD, TD, RTS, CTS, DTR, DCD and RI
        • 2.8.2 Serial Data Signals - RD, TD
          • Serial Data From Module (RD)
          • Serial Data To Module (TD)
        • 2.8.3 Control Signals - RTS, CTS, DTR, DCD, RI
          • Switching times for RTS and CTS
          • Request to Send (RTS)
          • Clear To Send (CTS)
          • Data Terminal Ready (DTR)
          • Data Carrier Detect (DCD)
          • Ring Indicator (RI)
          • Data Set Ready (DSR)
        • 2.8.4 UART2 - TD2, RD2
          • Transmitted Data 2 (TD2)
          • Received Data 2 (RD2)
        • 2.8.5 UART3 - TD3, RD3 (designated for future use)
          • Transmitted Data 3 (TD3)
          • Received Data 3 (RD3)
      • 2.9 SIM Card Related Signals
        • 2.9.1 SIM Detection - SIMPRESENCE
      • 2.10 Service/Programming
      • 2.11 Buzzer
      • 2.12 LED
      • 2.13 General Purpose Digital I/O Ports
      • 2.14 General Purpose Analogue I/O Ports
        • 2.14.1 Digital to Analogue Converter - DAC
        • 2.14.2 Analogue to Digital Converters 1, 2 and 3 - ADCx
      • 2.15 External I 2C Serial Control Bus
      • 2.16 TX_ON - Burst Transmission
      • 2.17 Real Time Clock
    • 3. Antenna Connector
    • 4. Hints for Integrating the Module
      • 4.1 Safety Advice and Precautions
        • 4.1.1 General
        • 4.1.2 SIM Card
        • 4.1.3 Antenna
      • 4.2 Installation of the Module
        • 4.2.1 Where to Install the Module
          • Environmental Conditions
          • Signal Strength
            • Tip! Before installing the module, use an ordinary mobile telephone to check a possible location ...
          • Connection of Components to GM47
          • Network and Subscription
        • 4.2.2 How to Install the Module
          • Power Supply
          • Grounds
          • Audio
          • Software Upgrade
      • 4.3 Antenna
        • 4.3.1 General
        • 4.3.2 Antenna Type
        • 4.3.3 Antenna Placement
        • 4.3.4 The Antenna Cable
        • 4.3.5 Possible Communication Disturbances
    • 5. Technical Data
      • Mechanical Specifications
      • Power supply voltage, normal operation
      • Radio specifications
      • SIM card
      • Environmental specifications
      • Data Storage
    • 6. Declaration of Conformity
    • 7. FCC Certificate
  • Part 4: Using AT Commands
    • 1. Introduction to AT Commands
      • 1.1 Overview
      • 1.2 Syntax Description
        • 1.2.1 Conventions
        • 1.2.2 AT Command Syntax
          • Basic Syntax Command
          • Extended Syntax Command
          • Read Command Syntax
          • Test Command Syntax
        • 1.2.3 AT Response Syntax
          • Final Result Code
          • Unsolicited Result Code
      • 1.3 Error Codes
        • 1.3.1 +CME ERROR (Mobile Equipment Error Code)
        • 1.3.2 +CMS ERROR (Message Service Failure Result Code)
      • 1.4 Examples on How to Use the AT Commands
      • 1.5 SMS Text Mode
        • Basic transmission of SMS
          • 1. Once the CSDH, CSMP and CMGF commands have been carried out they will not need to be initializ...
          • 2. These parameters are saved in NVRAM using the &W command.
        • Notification of SMS
        • Reading messages
        • Listing messages
      • 1.6 GPRS Communication
    • 2. Call Control
      • 2.1 AT+CPIN PIN Control
      • 2.2 ATA Answer Incoming Call
      • 2.3 ATD Dial
        • Example
      • 2.4 ATH Hang up
      • 2.5 ATL Monitor Speaker Loudness
      • 2.6 ATO Return to Online Data Mode
      • 2.7 ATP Select Pulse Dialling
      • 2.8 ATT Select Tone Dialling
      • 2.9 ATX Call Progress Monitoring Control
      • 2.10 AT+CHUP Hang up Call
      • 2.11 AT+CMOD Call Mode
      • 2.12 AT+CVHU Voice Hang-Up
      • 2.13 AT+VTS DTMF and Tone Generation
    • 3. Control and Status
      • 3.1 ATQ Result Code Suppression
      • 3.2 ATS0 Automatic Answer Control
      • 3.3 ATS2 Escape Sequence Character
      • 3.4 ATS3 Command Line Termination Character
      • 3.5 ATS4 Response Formatting Character
      • 3.6 ATS5 Command Line Editing Character (BACKSPACE)
      • 3.7 ATS6 Blind Dial Delay Control
      • 3.8 ATS7 Connection Completion Timeout
      • 3.9 ATS8 Comma Dial Modifier Delay Control
      • 3.10 ATS10 Automatic Disconnect Delay Control
      • 3.11 AT*ECAM Ericsson Call Monitoring
        • Examples
      • 3.12 AT*EDST Ericsson Daylight Saving Time
      • 3.13 AT*EMAR Ericsson Master Reset
      • 3.14 AT*EPEE Ericsson Pin Event
      • 3.15 AT*ESMM Ericsson Settings Minute Minder
      • 3.16 AT+CALA Set Alarm
      • 3.17 AT+CALD Alarm Delete
      • 3.18 AT+CCLK Set Clock and Date
        • Example
      • 3.19 AT+CEER Extended Error Report
      • 3.20 AT+CFUN Set Phone Functionality
      • 3.21 AT+CIND Indicator Control
      • 3.22 AT+CLAC List all available AT Commands
      • 3.23 AT+CMEE Mobile Equipment Error
      • 3.24 AT+CMER Mobile Equipment Event Reporting
      • 3.25 AT+CPAS Phone Activity Status
        • Example
      • 3.26 AT+CPIN PIN Control
        • Example
      • 3.27 AT+CPWD Change Password
        • Example
      • 3.28 AT+CR Service Reporting Control
      • 3.29 AT+CRC Cellular Result Code
      • 3.30 AT+CSAS Save Settings
      • 3.31 AT+CSQ Signal Strength
        • Example
      • 3.32 AT+CTZU Automatic Time Zone Update
    • 4. Audio
      • 4.1 AT*E2EAMS Ericsson M2M Audio Profile Modification
        • Examples
      • 4.2 AT*E2APR M2M Audio Profile Manipulation
        • Examples
      • 4.3 AT*EALR Ericsson Audio Line Request
      • 4.4 AT*EAMS Ericsson Audio Mode Selection
      • 4.5 AT*EARS Ericsson Audio Ring Signal
      • 4.6 AT*E2PHFB Portable Handsfree Button Sense Enable
      • 4.7 AT*ELAM Ericsson Local Audio Mode
      • 4.8 AT*EMIC Ericsson Microphone Mode
      • 4.9 AT*EMIR Ericsson Music Mute Indication Request
      • 4.10 AT*EPRR Ericsson Personal Ring Type Read
      • 4.11 AT*EPRW Ericsson Personal Ringtype Write
      • 4.12 AT*ERIL Ericsson Ring Level Set
      • 4.13 AT*ERIN Ericsson Ring Set
      • 4.14 AT*ERIP Ericsson Ring Signal Playback Command
      • 4.15 AT*ESMA Ericsson Set Message Alert Sound
      • 4.16 AT*ESOM Ericsson Settings Own Melody
      • 4.17 AT*EXVC Ericsson Set External Volume Control
      • 4.18 ATM Monitor Speaker Control
    • 5. Data - CSD/HSCSD
      • 5.1 AT+CBST Select Bearer Service Type
      • 5.2 AT+CRLP Radio Link Protocol
        • Example
    • 6. Data - GPRS
      • 6.1 AT+CGACT PDP Context Activate or Deactivate
      • 6.2 AT+CGATT GPRS Attach or Detach
      • 6.3 AT+CGDATA Enter Data State
      • 6.4 AT+CGDCONT Define PDP Context
      • 6.5 AT+CGEREP GPRS Event Reporting
      • 6.6 AT+CGPADDR Show PDP Address
      • 6.7 AT+CGQMIN Quality of Service Profile (Minimum Acceptable)
      • 6.8 AT+CGQREQ Quality of Service Profile (Requested)
      • 6.9 AT+CGREG GPRS Network Registration Status
        • Example
      • 6.10 AT+CGSMS Select Service for MO SMS Messages
    • 7. Data - HSCSD
      • 7.1 AT+CHSC HSCSD Current Call Parameters
      • 7.2 AT+CHSD HSCSD Device Parameters
      • 7.3 AT+CHSN HSCSD Non Transparent Call Configuration
      • 7.4 AT+CHSR HSCSD Parameters Report
      • 7.5 AT+CHSU HSCSD Automatic User Initiated Upgrading
    • 8. GPS Interoperability
      • 8.1 AT*EENMEA NMEA (GPS) Mode on UART2
      • 8.2 AT*E2NMPR Ericsson M2M Set NMEA (GPS) Port Rate
        • Examples
    • 9. Fax
      • 9.1 AT*E2FAX Ericsson M2M Fax Comm. Baud Rate Modification
        • Examples
      • 9.2 Low Level Fax Commands
    • 10. Identification
      • 10.1 AT Attention Command
      • 10.2 AT&F Set to Factory Defined Configuration
      • 10.3 AT&W Store User Profile
      • 10.4 AT* List all Supported AT Commands
      • 10.5 AT+CGMI Read MS Manufacturer Identification
        • Example
      • 10.6 AT+CGMM Read MS Model Identification
        • Example
      • 10.7 AT+CGMR Read MS Revision Identification
      • 10.8 AT+CGSN Read MS Product Serial Number Identification
      • 10.9 AT+GMI Read Manufacturer Identification
      • 10.10 AT+GMM Read Model Identification
      • 10.11 AT+GMR Read Revision Identification
        • Example
      • 10.12 ATI Identification Information
        • Examples
    • 11. Input/Output
      • 11.1 AT*E2IO Ericsson M2M Input/Output Read/Write
        • Scenario Cases
    • 12. Interface
      • 12.1 AT+CPIN PIN Control
      • 12.2 AT&C Circuit 109 (DCD) Control
      • 12.3 AT&D Circuit 108 (DTR) Response
      • 12.4 AT&S Circuit 107 (DSR) Response
      • 12.5 AT+WS46 Mode Selection
      • 12.6 ATE Command Echo
      • 12.7 ATV DCE Response Format
      • 12.8 ATZ Reset to Default Configuration
      • 12.9 AT+CMUX Switch to 07.10 Multiplex Protocol
      • 12.10 AT+CRES Restore SMS Settings
      • 12.11 AT+ICF Cable Interface Character Format
        • Example
      • 12.12 AT+IFC DTE-DCE Local Flow Control
      • 12.13 AT+ILRR Cable Interface Local Rate Reporting
      • 12.14 AT+IPR Cable Interface Port Command
      • 12.15 AT*E2SPI Serial Peripheral Interface
      • 12.16 AT*E2ESC M2M Escape Sequence Guard Time
    • 13. Network
      • 13.1 AT*E2CD Ericsson M2M Cell Description
      • 13.2 AT*E2EMM Ericsson M2M Engineering Monitoring Mode
        • Examples
      • 13.3 AT*E2SPN M2M Service Provider Indication
      • 13.4 AT*EALS Ericsson Request ALS Status
      • 13.5 AT*ECSP Ericsson Customer Service Profile
      • 13.6 AT*EPNR Ericsson Read SIM Preferred Network
        • Example
      • 13.7 AT*EPNW Ericsson Write SIM Preferred Network
      • 13.8 AT*E2SSN Ericsson M2M SIM Serial Number
        • EXAMPLES
      • 13.9 AT*ESLN Ericsson Set Line Name
      • 13.10 AT+CIMI Subscriber Identification
        • Example
      • 13.11 AT+CLCK Facility Lock
      • 13.12 AT+CNUM Subscriber Number
      • 13.13 AT+COLP Connected Line Identification Presentation
      • 13.14 AT+COPS Operator Selection
        • Example
      • 13.15 AT+CREG Network Registration
        • Example
      • 13.16 AT*ECPI Ciphering Indicator
      • 13.17 AT*E2NBTS Ericsson M2M Neighbour BTS
    • 14. Phonebook
      • 14.1 AT*E2PBCS Ericsson M2M Phonebook Check Sum
      • 14.2 AT*ESAG Ericsson Add to Group
      • 14.3 AT*ESCG Ericsson Create Group
      • 14.4 AT*ESCN Ericsson Set Credit Card Number
      • 14.5 AT*ESDG Ericsson Delete Group
      • 14.6 AT*ESDI Ericsson Delete Group Item
      • 14.7 AT*ESGR Ericsson Group Read
      • 14.8 AT*EGIR Ericsson Group Item Read
      • 14.9 AT*ESIL Ericsson Silence Command
      • 14.10 AT*ESNU Ericsson Settings Number
      • 14.11 AT+CPBF Phonebook Find
      • 14.12 AT+CPBR Phonebook Read
        • Example
      • 14.13 AT+CPBS Phone Storage
      • 14.14 AT+CPBW Phonebook Write
        • Example
      • 14.15 AT*ECAW Ericsson Callers Allowed Write
      • 14.16 AT*ECAR Ericsson Callers Allowed Read
    • 15. Short Message Services - Point to Point
      • 15.1 AT+CPIN PIN Control
      • 15.2 AT+CGSMS Select Service for MO SMS Messages
      • 15.3 AT+CPMS Preferred Message Storage
        • Common for both PDU (Protocol Data Unit) and Text Modes
        • Examples
      • 15.4 AT+CSCA Service Centre Address
        • Common for both PDU and Text Modes
        • Example
      • 15.5 AT+CMGF Message Format
        • Common for both PDU and Text Modes
      • 15.6 AT+CMGW Write Message to Memory
        • PDU Mode
        • Text Mode
      • 15.7 AT+CMGS Send Message
        • PDU Mode
        • Text Mode
        • Example
      • 15.8 AT+CMSS Send From Storage
        • PDU mode
        • Text Mode
      • 15.9 AT+CMGC Send Command
        • PDU Mode
        • Text Mode
      • 15.10 AT+CNMI New Message Indications to TE
        • PDU Mode
        • Text Mode
        • Example
      • 15.11 AT+CMGR Read Message
        • PDU Mode
        • Text Mode
        • Example
      • 15.12 AT+CMGL List Message
        • PDU Mode
        • Text Mode
        • Example
      • 15.13 AT+CMGD Delete Message
        • Common for both PDU and Text modes
      • 15.14 AT+CSDH Show Text Mode Parameters
        • Only Applicable to Text Mode
      • 15.15 AT+CSMP Set Text Mode Parameters
        • Only Applicable to Text Mode
      • 15.16 AT+CSCS Select Character Set
        • Example
      • 15.17 AT+CSMS Select Message Service
        • Common for both PDU and Text Modes
      • 15.18 AT*E2SMSRI Ring indicator for SMS
    • 16. Short Message Services - Cell Broadcast
      • 16.1 AT+CNMI New Message Indications to TE
      • 16.2 AT+CSCB Select Cell Broadcast Message Type
        • Common for both PDU and text modes
        • Example
    • 17. SIM Application Toolkit
      • 17.1 AT+CPIN PIN Control
      • 17.2 AT*E2STKS SIM Application Toolkit Settings
      • 17.3 AT*E2STKD M2M STK Display Text
      • 17.4 AT*E2STKG M2M STK Get Inkey
      • 17.5 AT*E2STKI M2M STK Get Input
      • 17.6 AT*E2STKL M2M STK Select Item
      • 17.7 AT*E2STKM M2M STK Set Up Menu
      • 17.8 AT*E2STKN M2M STK Envelope (Menu Selection)
      • 17.9 AT*E2STKC M2M STK Set Up Call
      • 17.10 *E2STKE STK Send Short Message
      • 17.11 *E2STKP STK Send SS
      • 17.12 *E2STKU STK Send USSD
      • 17.13 *E2STKR STK Refresh
      • 17.14 AT*E2STKTO SIM Application Toolkit Settings
    • 18. Supplementary Services
      • 18.1 AT+CPIN PIN Control
      • 18.2 AT+CACM Accumulated Call Meter
      • 18.3 AT+CAMM Accumulated Call Meter Maximum
      • 18.4 AT+CAOC Advice of Charge
      • 18.5 AT+CPUC Price Per Unit and Currency Table
      • 18.6 AT*EDIF Ericsson Divert Function
      • 18.7 AT*EIPS Identity Presentation Set
      • 18.8 AT*ELIN Ericsson Line Set
      • 18.9 AT*E2SSD M2M Supplementary Service Dispatch
      • 18.10 AT*E2SSI M2M Supplementary Service Indications
      • 18.11 AT+CCFC Call Forwarding number and Conditions
      • 18.12 AT+CCWA Call Waiting
        • Example
      • 18.13 AT+CHLD Call Hold and Multiparty
      • 18.14 AT+CLIP Calling Line Identification
        • Example
      • 18.15 AT+CLIR Calling Line Identification Restriction
      • 18.16 AT+CSSN Supplementary Service Notification
      • 18.17 AT+CUSD Unstructured Supplementary Service Data
        • Example 1
        • Example 2
        • Example 3
        • Example 4
    • 19. Alphabetical Listing of AT Commands