<s>
Business	B-Application
support	I-Application
systems	I-Application
(	O
BSS	O
)	O
are	O
the	O
components	O
that	O
a	O
telecommunications	O
service	O
provider	O
(	O
or	O
telco	O
)	O
uses	O
to	O
run	O
its	O
business	O
operations	O
towards	O
customers	O
.	O
</s>
<s>
The	O
initialism	O
BSS	O
is	O
also	O
used	O
in	O
a	O
singular	O
form	O
to	O
refer	O
to	O
all	O
the	O
business	B-Application
support	I-Application
systems	I-Application
,	O
viewed	O
as	O
a	O
whole	O
system	O
.	O
</s>
<s>
Revenue	O
management	O
focuses	O
on	O
billing	B-Application
,	O
charging	O
and	O
settlement	O
.	O
</s>
<s>
It	O
includes	O
billing	B-Application
for	O
consumer	O
,	O
enterprise	O
and	O
wholesale	O
services	O
,	O
including	O
interconnect	O
and	O
roaming	O
.	O
</s>
<s>
This	O
includes	O
billing	B-Application
mediation	O
systems	O
,	O
bill	O
generation	O
and	O
bill	O
presentment	O
.	O
</s>
