It may be any type of link that is dynamically allocated in {HEAD ~ terms} of bandwidth, data rate, {TAIL ~ modulation} or otherwise 
of
It may be any type of link that is dynamically allocated in { HEAD ~ terms } of bandwidth , data rate , { TAIL ~ modulation } or otherwise
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH