Multitech MultiModem Cell MTCBA-C1 User's Guide Page 7
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Chapter 1 – Introduction
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C) 7
Chapter 1 – Introduction
The AT command set is one of the main interfaces for the modem to interact with an external application layer.
CDMA AT commands are defined in TIA/EIA/IS707.3. However, as the wireless applications increase,
TIA/EIA/IS707.3 is not sufficient. In addition, a lot of GSM applications already exist and GSM customers would
like to maintain the same interface in order to make no or minimum changes to the applications to be used with
CDMA modem. To meet the all these needs, this CDMA AT command set is designed to cover the following:
1. IS707.3 AT commands;
2. GSM 07.07 when applicable;
3. GSM 07.05 when applicable,
4. ITU-T v25 when applicable;
5. Proprietary AT set;
6. Customer specific AT commands;
7. Qualcomm defined AT commands.
Please note that in several instances, the GSM 7.07 and 7.05 specifications could not be followed because of
fundamental differences between CDMA and GSM call processing behaviors. In these cases, minimal changes
were made to the GSM-related commands.
Scope of This Document
This document describes CDMA AT commands, their syntax, responses, and result codes. It serves as the
reference for wireless application development based on the CDMA modem and for its integration and testing.
The intended audience is expected to be familiar with CDMA data services protocol and AT modem commands.
Related References
This interface specification is based on the following recommendations or standards:
• ETSI GSM 07.05: Digital cellular telecommunications system (Phase 2): Use of DTE-DCE interface for
Short Message Service (SMS) and Cell Broadcast Service (CBS)
• ETSI GSM 07.07: Digital cellular telecommunications system (Phase 2): AT command set for GSM
Mobile Equipment (ME)
• ITU-T Recommendation V.25 ter: Serial asynchronous automatic dialing and control
• ETSI GSM 03.40: Digital cellular telecommunications system (Phase 2): Technical implementation of the
Short Message Service (SMS) Point-to-Point (PP)
• ETSI GSM 03.38: Digital cellular telecommunications system (Phase 2): Alphabets and language-specific
information
• ETSI GSM 04.80: Digital cellular telecommunications system (Phase 2): Mobile radio interface layer 3,
Supplementary service specification, Formats and coding
• WAVECOM AT Commands Interface Guide version 001/9.1
• TIA/EIA/IS-707.3: Data Service Options for Wideband Spread Spectrum Systems: AT Command
Processing and the Rm Interface
• Qualcomm Application Note (CL93-V0327-1 X10): AT COMMANDS FOR DMSS
• IS-131: Data Transmissions Systems and Equipment – Extensions to Asynchronous Dialing and Control.
• WISMO-CDMA Q24x8 Product Technical Specification; WI_HWD_Q24X8_PTS_001.
• TIA/EIA-592: Asynchronous Facsimile DCE Control Standard - Service Class 2
• WM_CCD_Q24x8_CTI_009: TCP App Application note
- CDMA-C1 AT Commands 1
- Contents 3
- Chapter 1 – Introduction 7
- Chapter 2 – AT Commands 8
- Overview 8
- Command Types 9
- Command Format and Syntax 9
- Input Command Syntax 10
- Other Syntax 10
- Output Response Syntax 10
- Parameter Defaults 10
- Unsolicited Message Syntax 11
- Attention AT 12
- Repeat Last Command A/ 12
- Echo E 12
- Bits +WUSLMSK 13
- Chapter 4 – Identification 15
- Commands 15
- Chapter 5 – Query Commands 17
- Chapter 6 – Global 18
- Configuration Commands 18
- Save Configuration &W 19
- Chapter 7 – Status Commands 20
- Chapter 8 – Communication 26
- Set Diagnostic Port +WDMX 27
- Set DCD Signal &C 27
- Set DTR Signal &D 28
- Set DSR Signal &S 28
- Automatic Answer S0 30
- Command Edit Character S5 31
- Chapter 9 – Call Control 33
- Hang-Up Command H 34
- Answer a Call A 34
- Incoming Call +RING 35
- Emergency Mode +WSOS 37
- Call Answered +WANS 38
- Call Connected +WCNT 38
- Call Ended +WEND 39
- Call Originated +WORG 40
- CPHS Command +CPHS 40
- Call Forwarding +CCFC 42
- Send DTMF Tones +VTS 44
- Chapter 10 – Network Service 45
- Signal Quality +CSQ 46
- Band Preference +WBND 49
- Service Indication +WSRV 50
- Roam Preference +WRMP 50
- Default Cell Band +WDCB 51
- Roaming Indication +WROM 51
- Chapter 11 – Provisioning 54
- Control Commands 54
- Excess SPC Failures +WLCK 55
- Download PRL +DPRL 56
- Commit Changes +WCMT 58
- Set IMSI +WIMI 58
- Slot Cycle Index +WSCI 60
- SID and NID +WSID 60
- Chapter 12 – OTASP / OTAPA 61
- Commit Successful +WOTC 62
- SPL Unlocked +WOTS 62
- NAM Download OK +WOTN 62
- MDM Download OK +WOTM 62
- IMSI Download OK +WOTI 63
- PRL Download OK +WOTP 63
- Chapter 14 – Short Message 70
- Service Control Commands 70
- Read Message +CMGR 71
- List Message +CMGL 72
- Delete Message +CMGD 73
- Chapter 15 – Audio Commands 79
- Microphone Gain +VGT 81
- Speaker Gain Control +VGR 82
- Digital Gain Receive +WDGR 84
- Echo Cancellation +ECHO 86
- Speaker Driver Gain +WSDG 87
- Audio Loopback &T 88
- Chapter 16 – Data Commands 89
- R-SCH Selection $QCMIP 90
- MIP Selection $QCMIPP 91
- Chapter 17 – TCP APP AT 98
- Chapter 18 – Sleep Commands 107
- Builds) 111
- Chapter 19 – Antenna 111
- Commands (Not for IP and GPS 111
- +WANTPOLL 113
- Auxiliary GPS Power +WANT 115
- Scenarios 118
- Call Processing 119
- Sending Binary Data 120
- TCP Socket Examples 121
- TCP Server Example 122
- ATZ, and AT&F 123
- Chapter 22 – CDMA 128
- Terminology and Acronyms 128
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