{HEAD ~ a second switching device} coupled to {TAIL ~ the high complexity processor} and the low complexity processor, and receiving a baseband signal, the baseband signal being coupled by the second switching device to the high complexity voice processor in the event the preselected characteristic does not exceed the preselected threshold, and being coupled to the low complexity processor in the event the preselected characteristic exceeds the preselected threshold 
{ HEAD ~ a second switching device } coupled to { TAIL ~ the high complexity processor } and the low complexity processor , and receiving a baseband signal , the baseband signal being coupled by the second switching device to the high complexity voice processor in the event the preselected characteristic does not exceed the preselected threshold , and being coupled to the low complexity processor in the event the preselected characteristic exceeds the preselected threshold
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH