Abstract: A radio frequency (RF) multi-testing apparatus and method for rapid (e.g. production line) testing of a wireless communications device for operational adherence of the device to a pre-determined reference specification defining specific absorption rate (SAR) parameters correlated to the device and for simultaneous testing of the body loss of the device. The device is positioned within an RF shielded enclosure and operated at a test transmit power. A linear array of E-field isotropic probes (e.g. five) are positioned at a predetermined location in the container within human tissue simulation matter and measure the electric-field therein. A plurality of RF isotropic probes are spatially distributed within the container and measure the RF power received thereby, with the container providing reflective surfaces therein. Computer processing apparatus compares the electric-field measurements to the SAR reference specification and determines therefrom whether the device adheres to the specification.

Abstract: A portable telephone hearing aid having an acousto-acoustic/magnetic amplifier providing a maximum gain of 20 dB has a circular housing at one end of a U-shaped resilient clip member for attaching it to the telephone receiver in a handset. A battery compartment, also housing an ON/OFF switch, and a gain control wheel, is located at the other end of the U-shaped clip.

Abstract: A telephone for a physically handicapped person has a transducer which is selected for easy actuation by the handicapped person. The transducer may, for example, be operated orally. When the transducer is first operated, a switch under the control of the transducer causes the telephone line switch to go "off hook" and, after a suitable delay, causes outpulsing of a zero signal to alert the operator. Once contact with the operator is established, the caller who has access to a telephone microphone, asks the operator to place the call and subsequently participates in it. Following the termination of the call, the transducer is operated again to reactuate the line switch and return the telephone set to its "on hook" condition. A similar procedure is followed when a call is received by the handicapped person. However, in this case, since no zero dialling is required, ringing voltage on the line is detected and, while present, zero dialling in response to transducer actuation is prevented.