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