We have listed some suggestions below to help you turn on and adjust the amplification.
1. Make sure that the telephone is plugged into an active electrical outlet. The TALK500 cannot amplify without electrical power. If it is plugged in, try it in a different outlet to see if that corrects the problem.
2. Make sure the "+40dB" button has been pushed. The red LED light next to the "+40dB" button should be lit. If it is not, push the "+40dB" button. The phone re-sets to regular volume when a call is hung up, so the "+40dB" button must be pushed every time the phone is used.
3. Check the volume control on the right side of the phone and make sure it is set to a high enough setting. Adjust the volume higher and see if that helps.