You need a recroding software in the first place. Any software is ok. Here we take Free Sound Recorder for example.

Free download here: http://www.sound-recorder.biz/freesoundrecorder.html

Record with the Free Sound Recorder and upload to the system, which supports these two formats: wav(8000KHz,16bit), mp3

Click “Option” to set the format, hot key and other functions of the recording file.

The system supports wav, mp3 and wav(8000KHz,16bit).

Save and upload your recording.

PBX advanced → SoundFiles

Add the recording file and upload to the system.

The file name is the original name of the file, and you can edit it.

Team name: you can choose a team and only this team can use the file. If no team is chosen, then the file is available to all teams.

After saving, you will see the newly-added file displaying at top of the list. Double-click to edit, and it will be automatically saved when the mouse leaves.