Specifications
Table Of Contents
- Chapter 1 – Introduction
- Chapter 2 – AT Commands Overview
- Chapter 3 - General Commands
- Chapter 4 – Identification Commands
- Chapter 5 – Query Commands
- Chapter 6 – Global Configuration Commands
- Chapter 7 – Status Commands
- Chapter 8 – Communication Commands
- Fixed DTE Rate +IPR
- DTE-DCE Local Flow Control +IFC
- Set DCD Signal &C
- Set DTR Signal &D
- Set DSR Signal &S
- V.42bis Data Compression +DS
- V.42bis Data Compression Report +DR
- Hang-Up 1x Data Command +WCHD
- Automatic Answer S0
- Line Termination Character S3
- Response Formatting Character S4
- Command Edit Character S5
- Connection Completion Timeout S7
- Carrier Detect Threshold S9
- Automatic Disconnect Delay S10
- DTMF Duration and Spacing S11
- Chapter 9 – Call Control Commands
- Dial Command D
- Hang-Up Command H
- Answer a Call A
- Calling Line Identification Presentation +CLIP
- Call Waiting Indication +CCWA
- Incoming Call +RING
- Set Voice Privacy Level +WPRV
- Emergency Mode +WSOS
- Call Answered +WANS
- Call Connected +WCNT
- Call Ended +WEND
- Call Originated +WORG
- CPHS Command +CPHS
- Voice Mail Indicator +WVMI
- List Current Call State +CLCC
- Call Forwarding +CCFC
- Send Flash to Base Station +WFSH
- Send DTMF Tones +VTS
- Chapter 10 – Network Service Commands
- Serving System +CSS
- Set Rm Interface Protocol +CRM
- Signal Quality +CSQ
- Network Registration & Roaming +CREG
- Set More Preferred Rescans +WTBMPRS
- Band Preference +WBND
- Service Indication +WSRV
- Roam Preference +WRMP
- Default Cell Band +WDCB
- Roaming Indication +WROM
- Enhanced Roaming Indication +WERI
- Cell Environment and RxLev Indication +CCED
- Chapter 11 – Provisioning Control Commands
- Chapter 12 – OTASP / OTAPA Indications
- Chapter 13 – OMA / DM Control Commands
- Chapter 14 – Short Message Service Control Commands
- Send Message +CMGS
- Read Message +CMGR
- List Message +CMGL
- Delete Message +CMGD
- Preferred Message Storage +CPMS
- Set SMS Compose Language and Encoding +WSCL
- New Message Indication +CNMI
- Incoming Message Directly Displayed +CMT
- Incoming Message Stored in Memory +CMTI
- SMS Status Report Indication Directly Displayed +CDS
- SMS Message Storage Full +WMGF
- Chapter 15 – Audio Commands
- Audio Subsystem Overview
- Speaker & Microphone Selection +SPEAKER
- Microphone Gain Enable +MGE
- Microphone Gain +VGT
- Speaker Gain Control +VGR
- Digital Gain Transmit +WDGT
- Digital Gain Receive +WDGR
- Side Tone Modification +SIDET
- Echo Cancellation +ECHO
- Loudspeaker Volume Level +CLVL
- Initialize Voice Parameters +VIP
- Audio Loopback &T
- Chapter 16 – Data Commands
- Chapter 17 – TCP App AT Commands (For Non-UIP Builds)
- Configure TCP/IP +WIPCFG
- Bearer Configuration +WIPBR
- Bearer Status +WIPBR
- Service Creation +WIPCREATE
- Service Status Unsolicited Response 1 +WIPREADY
- Service Status Unsolicited Response 2 +WIPACCEPT
- Service Status Unsolicited Response 3 +WIPERROR
- Last Socket Error Query +WIPERR
- Socket Data Exchange +WIPDATA
- TCP/IP Service Option Handling +WIPOPT
- Closing a Service +WIPCLOSE
- Close Service Status +WIPPEERCLOSE
- Enable Relay Mode for SIP Dial-Up +WRLY
- Chapter 18 – Sleep Commands (Not for UIP)
- Chapter 19 – Host Application Scenarios
- Chapter 20 – Effects of AT&W, ATZ, and AT&F
- Chapter 21 – CDMA Terminology and Acronyms
- Index

Copyright and Technical Support
2 Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide
CDMA C1 AT Commands Reference Guide
S000478C, Version C
Use this AT Command Guide with the following:
SocketModem
Cell – MTSMC-C1, MTSMC-C1-V
SocketModem iCell –MTSMC-C1-IP, MTSMC-C1-GP
MultiModem
iCell – MTSMC-C1-IP
MultiModem
iCell – MTCMR-C1
MultiModem
rCell – MTCBA-C1-EN2
MultiModem
Cell – MTCBA-C1
MultiConnect™ AW (MT200A2W-C1)
Copyright
This publication may not be reproduced, in whole or in part, without prior expressed written permission from Multi-Tech Systems, Inc. All
rights reserved.
Copyright © 2011-2012, by Multi-Tech Systems, Inc.
Multi-Tech Systems, Inc. makes no representations or warranty with respect to the contents hereof and specifically disclaim any implied
warranties of merchantability or fitness for any particular purpose. Furthermore, Multi-Tech Systems, Inc. reserves the right to revise this
publication and to make changes from time to time in the content hereof without obligation of Multi-Tech Systems, Inc. to notify any
person or organization of such revisions or changes.
Trademarks
SocketModem®, MultiModem®, Multi-Tech, and the Multi-Tech logo are registered trademarks of Multi-Tech Systems, Inc.
Sierra Wireless™ is a trademark of Sierra Wireless. Wavecom® is a registered trademark of Sierra Wireless S.A. in France and/or other
countries.
Revisions
Revision
Date
Description
C
01/07/11
Added the MultiModem CDMA C1X (MTCBA-C1X-xx). Added a note to +CFUN regarding resetting and
powering down the modem. Removed "Power Down Using the ON/OFF Signal" from the +CFUN command.
D
05/10/12
Removed +WDMX, +WPRV, +WTUOOS, +DPRL, +WAKY, +WAOC, +WSDG, +WSCI, +CIMP, $QCMIPRT,
$QCMIPMASS, $QCMIPMHSS, $QCMIPMASSX, $QCMIPMHSSX, $QCMIPMASPI, $QCMIPMHSPI, $QCMIPPHA,
$QCMIPSHA, $SPNAI, +WSRA, $WPLTIME, $WSMPI, and antenna commands.
Added +WERMER, +WRLY, $QCVAD.
Updated +WIPBR, +CGMR, +CGSN, +CGMI, +CGMM, +GCAP, +WIND, +CRC, +DS. +CLIP, +CCWA, +RING,
+WPRV,+WANS, +WCNT, +WEND, +WORGM +WVMI, +CCFC, +WFSH, +VTS, +CSS, +CRM, +CREG, +WRMP,
+CCED, +WIMI, +WMDN, +WPCCM,+WSID, +WDSI, +CMGS, +CMGL, +CPMS, +WMGF, +SPEAKER, +ECHO, +VIP,
+WIPBR, +W32K, OTASP and OTAPA, host application scenarios, and the effects of AT&W, ATZ, and AT&F.
Contacting Multi-Tech
Knowledge Base
The Knowledge Base provides immediate access to support information and resolutions for all Multi-Tech products. Visit
http://www.multitech.com/kb.go.
Installation Resources
To download manuals, firmware, and software, visit http://www.multitech.com/setup/product.go.
Support Portal
To create an account and submit a support case directly to our technical support team, visit: https://support.multitech.com
Technical Support
Business Hours: M-F, 9am to 5pm CT
Country
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support@multitech.co.uk
+(44) 118 959 7774
U.S., Canada, all others:
support@multitech.com
(800) 972-2439 or (763) 717-5863
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