Each entry is associated with one of a plurality of communication types and includes an identifier for use with {HEAD ~ an application} of {TAIL ~ the associated communication type} 
of
Each entry is associated with one of a plurality of communication types and includes an identifier for use with { HEAD ~ an application } of { TAIL ~ the associated communication type }
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 REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL