{HEAD ~ The answering machine} 10, wherein {TAIL ~ the extraction part} extracts caller ID information from a received dual tone multifrequency signal 
wherein
{ HEAD ~ The answering machine } 10 , wherein { TAIL ~ the extraction part } extracts caller ID information from a received dual tone multifrequency signal
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH