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
Chapter 10 – Network Service Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide 51
3 - 0.5 to < 1.0%
4 - 1.0 to < 2.0%
5 - 2.0 to < 4.0%
6 - 4.0 to < 8.0%
7 - >= 8.0%
99 <FER> is not known or is not detectable.
Signal Quality Unsolicited Response for +CSQ:
The Signal Quality (CSQ) unsolicited response is reported whenever the signal quality changes by a
predetermined threshold. See +CCED for enabling and disabling this result. This unsolicited response may also
be suppressed by using the +WUSLMSK command.
Response
Syntax: +CSQ: <rssi>, <fer>
Result Example
+CSQ: 31,99
Note: Signal quality is now -51 dBm or greater.
Frame error rate is unknown.
Values: <rssi> Received signal strength indication.
<fer> Frame error rate.
Network Registration & Roaming +CREG
Description: This command is used by the application to ascertain the registration and roaming status of the
product.
Command
Syntax: AT+CREG= <mode>
Response
Syntax: +CREG: <mode>, <stat>
Command
Possible Responses
AT+CREG=0
Note: Disable network registration
unsolicited result code.
+CREG: 0,1
OK
Note: Command valid
AT+CREG=1
Note: Enable network registration
unsolicited result code
+CREG: 1,1
OK
Note: Command valid
AT+CREG?
+CREG: 1,5
OK
Note: Unsolicited enabled, MS currently roaming.
AT+CREG=?
+CREG: (0-1)
OK
Note: 0,1 <mode> values are supported
Note: Example of the unsolicited result
code. MS is searching for a base station.
+CREG: 2
Values: <mode>
0 Disable network registration unsolicited result code (default)
1 Enable network registration unsolicited code result code +CREG: <stat>
<stat>