<s>
Optical	B-Protocol
wireless	I-Protocol
is	O
the	O
combined	O
use	O
of	O
"	O
optical	O
"	O
(	O
optical	B-Architecture
fibre	I-Architecture
)	O
and	O
"	O
wireless	O
"	O
(	O
radio	O
frequency	O
)	O
communication	O
to	O
provide	O
telecommunication	O
to	O
clusters	O
of	O
end	O
points	O
which	O
are	O
geographically	O
distant	O
.	O
</s>
<s>
The	O
high	O
capacity	O
optical	B-Architecture
fibre	I-Architecture
is	O
used	O
to	O
span	O
the	O
longest	O
distances	O
.	O
</s>
<s>
A	O
lower	O
cost	O
wireless	O
link	O
carries	O
the	O
signal	O
for	O
the	O
last	B-Protocol
mile	I-Protocol
to	O
nearby	O
users	O
.	O
</s>
