Each modem includes a transmitter section for transmitting data and {HEAD ~ a receiver section} for receiving {TAIL ~ data}, and is of the discrete multitone type, i.e., the modem transmits data over a multiplicity of subchannels of limited bandwidth 
for receiving
Each modem includes a transmitter section for transmitting data and { HEAD ~ a receiver section } for receiving { TAIL ~ data } , and is of the discrete multitone type , i.e. , the modem transmits data over a multiplicity of subchannels of limited bandwidth
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL 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