<s>
IP-CAN	B-Protocol
(	O
or	O
IP	B-Protocol
connectivity	I-Protocol
access	I-Protocol
network	I-Protocol
)	O
is	O
an	O
access	O
network	O
that	O
provides	O
Internet	B-Protocol
Protocol	I-Protocol
(	O
IP	O
)	O
connectivity	O
.	O
</s>
<s>
The	O
term	O
is	O
usually	O
used	O
in	O
cellular	O
context	O
and	O
usually	O
refers	O
to	O
3GPP	O
access	O
networks	O
such	O
as	O
GPRS	B-General_Concept
or	O
EDGE	O
,	O
but	O
can	O
be	O
also	O
used	O
to	O
describe	O
wireless	B-Architecture
LAN	I-Architecture
(	O
WLAN	B-Architecture
)	O
or	O
DSL	O
networks	O
.	O
</s>
<s>
It	O
was	O
introduced	O
in	O
3GPP	O
IP	B-Protocol
Multimedia	I-Protocol
Subsystem	I-Protocol
(	O
IMS	O
)	O
standards	O
as	O
a	O
generic	O
term	O
referring	O
to	O
any	O
kind	O
of	O
IP-based	O
access	O
network	O
as	O
IMS	O
put	O
much	O
emphasis	O
on	O
access	O
and	O
service	O
network	O
separation	O
.	O
</s>
