{HEAD ~ The caller ID extracting part} analyzes a call incoming signal and extracts an area code as {TAIL ~ the caller ID information} 
{ HEAD ~ The caller ID extracting part } analyzes a call incoming signal and extracts an area code as { TAIL ~ the caller ID information }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL