AT+COPS=? doesn't return or returns CME ERROR 22...

How do smart phones use AT commands and data connection(s)? gsm mux? multiple uarts?...

I want to download some audio files from SIM808 to my PC...

What are the supported cipher suites in sim800c?...

How to retrieve the parts of the same long SMS received from the AT+CMGL command...

How to send long message using AT Commands, vb.Net...

Run AT commands from adb shell on Redmi 7...

How to delete all SMS from SIM800l?...

adb shell cmgs AT command in pdu mode on Redmi 7 not working...

Get the biginteger number from String in java...

Modem seems not to accept the issued AT Commands ATZ and AT+VCID=1 in order to enable Caller Id...

How to schedule a task to shutdown a PC every day?...

USART not reading all modem responses...

How can I change my xbee setup for AP = 0 from API mode (AP = 1 or AP =2) by using digi module in py...

What is a proper way to send AT commands?...

How do I customize HTML headers when doing a POST using AT commands?...

Problems with issuing at#httpsnd command over UART...

+CME ERROR: 100 when executing USSD command in perl...

GSM module L651. So long network registration...

How to receive incoming SMS notification in linux?...

Error on sending AT+CWJAP_DEF commands to ESP8266...

No cursor motion capability occurs when startup linux script execute minicom script with at commands...

Unable to receive flash (Class 0) SMS on Modem...

GSM Modem USSD Check Balance Getting CME Error 100...

CREG, CGREG, CEREG AT commands...

AT-COMMAND how to check data connection...

SIM800l - Disable "SMS Ready" and "Call Ready" unsolicited messages...

How to change/create SIM PIN using AT commands when the SIM card has no PIN?...

How to send AT commands to Huawei E3272 Hilink with python(pyserial)?...

Arduino Sim900 AT+SAPBR=1,1 --> Operation not allowed...