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