This guide is a simple overview of the only features
Send the following SMS commands (ie. ;PPA;) to the SIM card phone number to request or set parameters.
1. To increase volume from 5 to 7:
2. To decrease volume from 7 to 5:
Send ;PPA; which will return a number of parameters including speaker volume ie. ;SPK=XX;
Choose a new volume level (1–20), changing by only 2 digits at a time.
Send ;+SPK=XX; where XX is your desired volume level. Adding the + means you rewceive a reply confirmation by SMS.
Please raise a tracked support ticket with our team to provide required pre-check information. Our expert support engineers will reply or call as required after checking your device.