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