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