1. A phone having a camera and a speaker, wherein a field of vision of the camera and a field of sound transmission of the speaker overlap, said phone comprising a processor and a computer-readable storage device having computer-readable program instructions stored therein, the program instructions executable by the processor of the phone to perform a method comprising: said processor detecting an ear image of a user in one or more pictures of the user taken from the camera in preparation for a phone call; said processor detecting a hearing aid image in conjunction with the ear image; and said processor causing a switch to set a volume level of the speaker for hearing aid performance as a result of said detecting the hearing aid image in conjunction with the ear image.