<s>
In	O
computer	O
networking	O
,	O
the	O
Application	B-Application
Session	I-Application
Controller	I-Application
(	O
ASC	O
)	O
network	O
element	O
resides	O
at	O
the	O
application	B-Application
layer	I-Application
and	O
sits	O
between	O
the	O
application	B-Application
layer	I-Application
and	O
the	O
core	B-General_Concept
network	I-General_Concept
to	O
provide	O
and	O
manage	O
connectivity	O
to	O
the	O
evolving	O
telecom	O
network	O
.	O
</s>
<s>
The	O
ASC	O
incorporates	O
a	O
number	O
of	O
open	O
standard	O
APIs	B-Application
,	O
plus	O
the	O
signaling	O
,	O
media	O
between	O
disparate	O
networks	O
that	O
converged	O
.	O
</s>
<s>
It	O
insulates	O
the	O
application	O
server	B-Operating_System
farm	I-Operating_System
from	O
the	O
network	O
below	O
via	O
a	O
programmable	O
network	O
abstraction	O
engine	O
,	O
thereby	O
providing	O
the	O
application	O
specific	O
call-control	O
functions	O
independent	O
of	O
each	O
network	O
.	O
</s>
<s>
The	O
ASC	O
incorporates	O
a	O
number	O
of	O
open	O
standard	O
APIs	B-Application
,	O
plus	O
the	O
signaling	O
,	O
media	O
,	O
and	O
the	O
feature	O
inter-working	O
between	O
disparate	O
networks	O
that	O
converged	O
and	O
consolidated	O
applications	O
require	O
.	O
</s>
<s>
As	O
Communications	O
Service	O
Providers	O
continue	O
to	O
deploy	O
new	O
network	O
assets	O
and	O
technology	O
at	O
an	O
increasingly	O
rapid	O
pace	O
,	O
achieving	O
feature	O
transparency	B-Operating_System
becomes	O
very	O
challenging	O
.	O
</s>
<s>
The	O
benefit	O
of	O
creating	O
a	O
solution	O
to	O
ensure	O
feature	O
transparency	B-Operating_System
will	O
provide	O
subscribers	O
application	O
feature	O
parity	O
across	O
multiple	O
networks	O
,	O
enable	O
the	O
service	O
providers	O
to	O
consolidate	O
their	O
application	B-Device
platforms	I-Device
and	O
fully	O
enable	O
them	O
to	O
leverage	O
their	O
network	O
assets	O
to	O
offer	O
converged	O
applications	O
across	O
ever	O
evolving	O
networks	O
.	O
</s>
