LTE Standard Module Series 2.2. Declaration of AT Command Examples The AT command examples in this document are provided to help you learn about how to use the AT commands introduced herein. The examples, however, should not be taken as Quectel’s recommendation or suggestions about how you should design a program flow or what status you should set the module into. Sometimes multiple examples may be provided for one AT command. However, this does not mean that there exists a correlation among these examples and that they should be executed in a given sequence. 2.3. AT Command Description 2.3.1.
AT+CLVL Loudspeaker Volume Level Selection This command selects the volume level of the internal loudspeaker of MT. EC200U&EG915U_Series_Audio_Application_Note 8 / 25 AT+CLVL Loudspeaker Volume Level Selection Test Command AT+CLVL=? Response +CLVL: (range of supported s) OK Read Command AT+CLVL? Response +CLVL: OK Or ERROR Write Command AT+CLVL= Response OK Or ERROR If there is any error related to ME functionality: +CME ERROR: Maximum Response Time 300 ms Characteristics The command takes effect immediately. The configuration will be saved automatically. Reference 3GPP TS 27.007