Install AT Command Tester
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AT Commands Introduction
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Get Signal Strength
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AT+CGDCONT – Set up PDP profile
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Send SMS in Text Mode
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Send SMS in PDU Mode
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AT+CPIN – Lock/UnLock SIM Card
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AT+CGACT – Activate PDP Profile
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AT+CGATT – PDP Attach
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Dial Voice Call
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Set Alert Sound Mode
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AT+CRSL – Set Ringer Volume
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AT+CLVL – Set Loud speaker volume
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Test Audio Features
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Send Restricted SIM Access Command
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AT+CMGS – Send SMS
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AT+CSCS – Set Device Character Set
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AT+CREG – Network Registration
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AT+CLIP – Calling Line Identification Presentation
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AT+CIMI – International Mobile Subscriber Identity (IMSI)
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AT+CMEE – Report Mobile Equipment Error
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AT+CCLK – Set/Get Date and Time
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AT+CPAS – Phone Activity Status
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AT+CLCK – Facility Lock
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AT+CGDATA – Enter Data State
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AT+CPBR – Read Phonebook
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AT+CPBW – Write Phonebook
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AT+CBST – Select Bearer Service
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AT+CBC – NBattery Charging Status
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Test Audio
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Set up dial-up connection with cellular modems
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Fix Dial-up Error 663
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Fix Dial-up Error 777
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Fix Dial-up Error 628
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Fix Dial-up Error 678
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Fix Dial-up Error 756
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AT+CHTTPACT – Initiate HTTP
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AT+CNMP – Set Preferred Mode
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AT+CNBP – Set Preferred Band
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AT+CNAOP – Set Acquisition Order
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AT+CNSMOD – Return current system mode
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AT+CPSI – Return UE System
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AT+CTZU – Automatic update of time and timezone
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AT+NETMODE – Set TDSCDMA or WCDMA mode
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AT+SPIC – Times remain to input SIM PIN/PUK
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AT+AUTOCSQ – Set CSQ
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Install drivers for Simcom h/w dev kit
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Connect SIM7500A to AT Command Tester
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SIM7500A Diagnostics commands
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SIM7500A – Check Network
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SIM7500A – Set up APN
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SIM7500A – Set up TCP Connection
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Connect SIM7000A to AT Command Tester
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SIM7000A Diagnostics
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SIM7000A Check Network Status
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SIM7000A – Set up APN
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SIM7000A Set up TCP
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SIM7000A Send SMS
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SIM7000A Set up Bearer Profiles
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SIM7000A HTTP GET
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AT+CMNB – CAT-M/NB-IoT Preference
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AT+CBANDCFG – CAT-M/NB-IoT Bands
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CAT-M Testing
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NB-IOT Testing
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CAT-M AT Command Script
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NB-IoT AT Command Script
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