Apparatus, and an associated method, for enhancing VoIP communication services at a selected QoS level in a radio communication system. The sound pattern is selected on the basis of signals from various combinations of signals detected from an object detection sensor and an ambient noise level sensor, thereby providing enhanced safety in the work environment. The TAS re-sampler forwards the second timing strobe to the RFIC to trigger a collection of data samples and initiates a count of RFIC clock cycles. A second side cover may be formed under the light emitting module and the light guide plate, the second side cover having a plurality of connector holes.