{HEAD ~ This function} detects Multi Frequency tones and generates {TAIL ~ MF} and call processing tones  
generates
{ HEAD ~ This function } detects Multi Frequency tones and generates { TAIL ~ MF } and call processing tones
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH