There was 4 volume control options, Handset volume, headset volume, speaker volume and ringer volume. To change the volume of you handset you will need to have the handset lifted off the receiver, use the + and – volume buttons located in the bottom right of your phone. To change the volume of the headset please ensure you are in headset mode (the headset button light will be green). Once in headset mode, initiate a call or dial a digit and then use the volume buttons. To change the speaker volume press the speaker phone button, this will use the external speaker and you can control the volume with the volume buttons. To change the ringer volume, please make sure the phone is in idle, this means the receiver is down and there are no active calls. You can then change the volume of the ringer using the volume control buttons.