{HEAD ~ The controller} is transparent to incoming calls and local outgoing calls, as well as {TAIL ~ certain excepted calls} which commence with the digit 1 
is transparent to
{ HEAD ~ The controller } is transparent to incoming calls and local outgoing calls , as well as { TAIL ~ certain excepted calls } which commence with the digit 1
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH