VOICE DATA DISCRIMINATOR

摘要

The device filters a signal in a telecommunications link into a voice frequency signal and a data frequency signal and compares samples of the magnitude of each to provide an indication of whether the sample is a voice sample, a data sample, or neither a voice nor a data sample. The device tracks the relative number of voice and data samples and, based on this, enters a voice or a data mode. When in voice mode, the device times the duration of voice on the telecommunications link and, optionally, may take down the communication link if the voice exceeds a predetermined maximum duration.