{HEAD ~ An output} then outputs {TAIL ~ the synthesized audio tones} to a voice channel of a digital wireless telecommunications network 
outputs
{ HEAD ~ An output } then outputs { TAIL ~ the synthesized audio tones } to a voice channel of a digital wireless telecommunications network
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH