Patent ID: 7961675

Claim:
A method comprising: determining a coding type for a speech signal via a transcoder and rate adaptor unit (TRAU); determining a set of bits associated with each transport channel of at least two transport channels corresponding to the speech signal via the TRAU; determining if error checking is required for one or more of the at least two transport channels, wherein the at least two transport channels comprise a first transport channel and a second transport channel, wherein the first transport channel comprises a set of class A bits, and wherein the second transport channel comprises a set of class B bits; computing error check bits for each transport channel that requires error checking, wherein at least a portion of the class A bits comprises a set of error check bits associated with a cyclic redundancy check; determining a priority for each set of bits associated with each transport channel via the TRAU; inserting into a generic TRAU frame, via the TRAU, each set of bits according to the determined priority of each set of bits, wherein the generic TRAU frame is adaptable for use with different codecs; and inserting into the generic TRAU frame the computed error check bits associated with each transport channel that requires error checking, wherein the generic TRAU frame includes, in sequence, the set of class A bits, including the set of error check bits associated with the cyclic redundancy check, and the set of class B bits.