A method, apparatus and system for accurately identifying discontinuous
transmissions (DTX) and enabling the utilization of a dedicated control
channel (DCCH) by determining if the frame satisfies a quality check,
analyzing at least a portion of bits within the frame if the frame does
not satisfy the quality check, determining if the bits analyzed exceed a
threshold and identifying the frame as a DTX if the bits fail to exceed
the threshold. Some embodiments further count a number of zero bits in a
tail end of the frame, determine if the number of zero values exceed the
threshold, determine if the frame includes an expected sequence of bits
if the number of the zero bits does not exceed the threshold, and
identify the frame as the DTX if the frame does not include the expected
sequence.