{TAIL ~ Data} that is used to screen or filter incoming calls is programmed into a call manager by {HEAD ~ the IP telephone system users} broadband residential gateway 
{ TAIL ~ Data } that is used to screen or filter incoming calls is programmed into a call manager by { HEAD ~ the IP telephone system users } broadband residential gateway
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH