The system utilizes {TAIL ~ a location register} in the form of a service control point located in the landline network to store certain information pertaining to landline numbers and {HEAD ~ respective routing numbers} associated with landline devices 
The system utilizes { TAIL ~ a location register } in the form of a service control point located in the landline network to store certain information pertaining to landline numbers and { HEAD ~ respective routing numbers } associated with landline devices
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH