<s>
In	O
Digital	B-Application
Video	I-Application
Broadcasting	I-Application
,	O
the	O
Common	B-Device
Interface	I-Device
(	O
also	O
called	O
DVB-CI	B-Device
)	O
is	O
a	O
technology	O
which	O
allows	O
decryption	O
of	O
pay	O
TV	O
channels	O
.	O
</s>
<s>
The	O
Common	B-Device
Interface	I-Device
allows	O
TV	O
manufacturers	O
to	O
support	O
many	O
different	O
pay	O
TV	O
stations	O
,	O
by	O
allowing	O
to	O
plug	O
in	O
exchangeable	O
conditional-access	B-Device
modules	I-Device
(	O
CAM	B-Device
)	O
for	O
various	O
encryption	O
schemes	O
.	O
</s>
<s>
The	O
Common	B-Device
Interface	I-Device
is	O
the	O
connection	O
between	O
the	O
TV	O
tuner	O
(	O
TV	O
or	O
set-top	O
box	O
)	O
and	O
the	O
module	O
that	O
decrypts	O
the	O
TV	O
signal	O
(	O
CAM	B-Device
)	O
.	O
</s>
<s>
The	O
host	O
(	O
TV	O
or	O
set-top	O
box	O
)	O
is	O
responsible	O
for	O
tuning	O
to	O
pay	O
TV	O
channels	O
and	O
demodulation	O
of	O
the	O
RF	O
signal	O
,	O
while	O
CAM	B-Device
is	O
responsible	O
for	O
CA	O
descrambling	O
.	O
</s>
<s>
The	O
Common	B-Device
Interface	I-Device
allows	O
them	O
to	O
communicate	O
with	O
each	O
other	O
.	O
</s>
<s>
All	O
Common	B-Device
Interface	I-Device
equipment	O
must	O
comply	O
with	O
the	O
EN	O
50221-1997	O
standard	O
.	O
</s>
<s>
This	O
is	O
a	O
defined	O
standard	O
that	O
enables	O
the	O
addition	O
of	O
a	O
CAM	B-Device
in	O
a	O
DTV	B-Device
receiver	I-Device
to	O
adapt	O
it	O
to	O
different	O
kinds	O
of	O
cryptography	O
.	O
</s>
<s>
The	O
EN	O
50221	O
specification	O
allows	O
many	O
types	O
of	O
modules	O
but	O
only	O
the	O
CAM	B-Device
has	O
found	O
popularity	O
because	O
of	O
the	O
pay	O
TV	O
market	O
.	O
</s>
<s>
Indeed	O
,	O
one	O
of	O
Digital	B-Application
Video	I-Application
Broadcasting	I-Application
's	O
main	O
strengths	O
is	O
the	O
option	O
of	O
implementing	O
the	O
required	O
conditional	B-Architecture
access	I-Architecture
capability	O
on	O
the	O
Common	B-Device
Interface	I-Device
.	O
</s>
<s>
A	O
DVB	B-Application
receiver	O
may	O
have	O
one	O
or	O
two	O
slots	O
implementing	O
the	O
Common	B-Device
Interface	I-Device
(	O
CI	O
)	O
.	O
</s>
<s>
The	O
CI	O
uses	O
the	O
conditional-access	B-Device
module	I-Device
(	O
PCMCIA	B-Architecture
)	O
connector	O
and	O
conforms	O
to	O
the	O
Common	B-Device
Scrambling	I-Device
Algorithm	I-Device
(	O
CSA	O
)	O
,	O
the	O
normative	O
that	O
specifies	O
that	O
such	O
a	O
receiver	O
must	O
be	O
able	O
to	O
accept	O
DES	B-Algorithm
(	O
Data	B-Algorithm
Encryption	I-Algorithm
Standard	I-Algorithm
)	O
keys	O
in	O
intervals	O
of	O
some	O
milliseconds	O
,	O
and	O
use	O
them	O
to	O
decode	O
private	O
channels	O
according	O
to	O
a	O
specific	O
algorithm	O
.	O
</s>
<s>
As	O
the	O
full	O
MPEG-2	B-Algorithm
transport	O
data	O
stream	O
comes	O
out	O
of	O
the	O
demodulator	O
,	O
and	O
error	O
correction	O
units	O
,	O
the	O
DTV	B-Device
Receiver	I-Device
sends	O
it	O
through	O
the	O
card	O
plugged	O
into	O
the	O
Common	B-Device
Interface	I-Device
,	O
before	O
it	O
is	O
processed	O
by	O
the	O
MPEG	O
demultiplexer	O
in	O
the	O
receiver	O
.	O
</s>
<s>
An	O
embedded	O
CAM	B-Device
may	O
not	O
physically	O
exist	O
,	O
as	O
it	O
may	O
be	O
in	O
CPU	O
software	O
.	O
</s>
<s>
In	O
such	O
a	O
case	O
,	O
only	O
the	O
smart	O
card	O
reader	O
normally	O
in	O
the	O
CAM	B-Device
is	O
fitted	O
and	O
not	O
the	O
PCMCIA	B-Architecture
type	O
CI	O
slots	O
.	O
</s>
<s>
Even	O
if	O
the	O
Common	B-Device
Interface	I-Device
has	O
been	O
created	O
to	O
resolve	O
cryptography	O
issues	O
,	O
it	O
can	O
have	O
other	O
functions	O
using	O
other	O
types	O
of	O
modules	O
such	O
as	O
Web	B-Application
Browser	I-Application
,	O
iDTV	B-Device
(	O
Interactive	O
Television	O
)	O
,	O
and	O
so	O
forth	O
.	O
</s>
<s>
In	O
Europe	O
,	O
DVB-CI	B-Device
is	O
obligatory	O
in	O
all	O
iDTV	B-Device
terminals	O
.	O
</s>
<s>
The	O
host	O
sends	O
an	O
encrypted	O
MPEG	O
transport	O
stream	O
to	O
the	O
CAM	B-Device
and	O
the	O
CAM	B-Device
sends	O
the	O
decrypted	O
transport	O
stream	O
back	O
to	O
the	O
host	O
.	O
</s>
<s>
The	O
CAM	B-Device
often	O
contains	O
a	O
smart-card	O
reader	O
.	O
</s>
<s>
The	O
normative	O
DVB-CI	B-Device
standard	O
EN	O
50221	O
was	O
defined	O
in	O
1997	O
by	O
CENELEC	O
,	O
the	O
European	O
Committee	O
for	O
Electrotechnical	O
Standardization	O
.	O
</s>
<s>
According	O
to	O
the	O
Common	B-Device
Interface	I-Device
scheme	O
:	O
</s>
<s>
module	O
:	O
A	O
small	O
device	O
,	O
not	O
working	O
by	O
itself	O
,	O
designed	O
to	O
run	O
specialized	O
tasks	O
in	O
association	O
with	O
a	O
host	O
;	O
for	O
example	O
,	O
a	O
conditional	B-Architecture
access	I-Architecture
sub	O
system	O
,	O
an	O
electronic	O
program	O
guide	O
application	O
module	O
,	O
or	O
to	O
provide	O
resources	O
required	O
by	O
an	O
application	O
but	O
not	O
provided	O
directly	O
by	O
the	O
host	O
.	O
</s>
<s>
The	O
first	O
interface	O
is	O
the	O
MPEG-2	B-Algorithm
Transport	O
Stream	O
.	O
</s>
<s>
The	O
link	O
and	O
physical	O
layers	O
are	O
defined	O
in	O
this	O
specification	O
and	O
the	O
higher	O
layers	O
are	O
defined	O
in	O
the	O
MPEG-2	B-Algorithm
specifications	O
.	O
</s>
<s>
The	O
specification	O
does	O
not	O
define	O
the	O
operation	O
or	O
functionality	O
of	O
a	O
conditional	B-Architecture
access	I-Architecture
system	I-Architecture
application	O
on	O
the	O
module	O
.	O
</s>
<s>
The	O
applications	O
that	O
may	O
be	O
performed	O
by	O
a	O
module	O
communicating	O
across	O
the	O
interface	O
are	O
not	O
limited	O
to	O
conditional	B-Architecture
access	I-Architecture
or	O
to	O
those	O
described	O
in	O
this	O
specification	O
.	O
</s>
<s>
The	O
common	B-Device
interface	I-Device
shares	O
many	O
features	O
of	O
the	O
PC	B-Architecture
Card	I-Architecture
Standard	O
(	O
PCMCIA	B-Architecture
)	O
.	O
</s>
<s>
The	O
transport	O
stream	O
format	O
is	O
specified	O
by	O
IEC	O
13818-1	O
and	O
is	O
the	O
MPEG	B-Algorithm
2	I-Algorithm
TS	O
format	O
.	O
</s>
<s>
This	O
resource	O
also	O
allows	O
the	O
CAM	B-Device
to	O
request	O
and	O
receive	O
PIN	O
numbers	O
.	O
</s>
<s>
Some	O
of	O
defined	O
by	O
DVB-CI	B-Device
resources	O
are	O
de	O
facto	O
optional	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
host	O
could	O
contain	O
a	O
modem	O
for	O
communication	O
over	O
a	O
telephone	O
line	O
allowing	O
the	O
CAM	B-Device
to	O
implement	O
pay-per-view	O
.	O
</s>
<s>
The	O
Host	O
Control	O
resource	O
(	O
allowing	O
CAM	B-Device
to	O
request	O
force-tuned	O
)	O
also	O
may	O
be	O
absent	O
in	O
some	O
of	O
hosts	O
.	O
</s>
<s>
The	O
definitely	O
mandatory	O
resources	O
are	O
Resource	O
Manager	O
,	O
Application	O
Information	O
and	O
Conditional	B-Architecture
Access	I-Architecture
Support	O
ones	O
.	O
</s>
<s>
First	O
two	O
of	O
these	O
three	O
are	O
necessary	O
for	O
initial	O
handshaking	O
between	O
CAM	B-Device
and	O
its	O
Host	O
,	O
while	O
the	O
CA	O
Support	O
resource	O
is	O
necessary	O
for	O
descrambling	O
the	O
selected	O
channels	O
.	O
</s>
<s>
CI+	B-Device
(	O
also	O
known	O
as	O
CI	B-Device
Plus	I-Device
or	O
Common	B-Device
Interface	I-Device
Plus	I-Device
)	O
is	O
a	O
specification	O
that	O
extends	O
the	O
original	O
DVB	B-Application
Common	B-Device
Interface	I-Device
standard	O
(	O
DVB-CI	B-Device
,	O
sometimes	O
referred	O
to	O
as	O
DVB-CIv1	O
)	O
.	O
</s>
<s>
The	O
main	O
addition	O
introduced	O
by	O
CI+	B-Device
is	O
a	O
form	O
of	O
copy	O
protection	O
between	O
a	O
CI+	B-Device
conditional-access	B-Device
module	I-Device
(	O
referenced	O
by	O
the	O
spec	O
as	O
CICAM	O
,	O
while	O
CI+	B-Device
CAM	B-Device
seems	O
to	O
be	O
a	O
more	O
precise	O
abbreviation	O
)	O
and	O
the	O
television	O
receiver	O
(	O
Host	O
)	O
.	O
</s>
<s>
CI+	B-Device
is	O
backward	O
compatible	O
with	O
DVB-CIv1	O
.	O
</s>
<s>
Old	O
television	O
receivers	O
,	O
which	O
have	O
CIv1	O
CI-slot	O
,	O
can	O
be	O
used	O
with	O
CI+	B-Device
CAM	B-Device
and	O
vice	O
versa	O
,	O
but	O
for	O
viewing	O
only	O
those	O
of	O
TV	O
programs	O
which	O
are	O
not	O
marked	O
as	O
CI+	B-Device
protected	O
.	O
</s>
<s>
CI+	B-Device
specification	O
has	O
been	O
developed	O
by	O
consumer	O
electronic	O
firms	O
Panasonic	O
,	O
Philips	O
,	O
Samsung	O
and	O
Sony	O
,	O
as	O
well	O
as	O
pay-TV	O
technology	O
company	O
SmarDTV	O
and	O
fabless	B-Algorithm
chip	O
maker	O
Neotion	O
.	O
</s>
<s>
A	O
first	O
draft	O
of	O
the	O
specification	O
was	O
put	O
up	O
for	O
review	O
in	O
January	O
2008	O
as	O
V1.00	O
CI	B-Device
Plus	I-Device
Specification	O
.	O
</s>
<s>
The	O
main	O
features	O
added	O
to	O
the	O
original	O
DVB-CI	B-Device
standard	O
by	O
the	O
CI+	B-Device
v1.2	O
are	O
:	O
</s>
<s>
support	O
of	O
IP	O
communication	O
was	O
added	O
to	O
the	O
DVB-CI	B-Device
'	O
s	O
Low-Speed	O
Communication	O
(	O
LSC	O
)	O
resource	O
(	O
but	O
without	O
renaming	O
it	O
to	O
"	O
High-Speed	O
"	O
)	O
.	O
</s>
<s>
The	O
mandatory	O
feature	O
(	O
as	O
it	O
's	O
actually	O
the	O
main	O
raison	O
d'être	O
of	O
CI+	B-Device
)	O
is	O
Content	O
Control	O
.	O
</s>
<s>
The	O
optional	O
feature	O
of	O
v1.2	O
version	O
is	O
"	O
PVR	O
Resource	O
"	O
–	O
this	O
can	O
be	O
concluded	O
from	O
the	O
fact	O
that	O
it	O
does	O
n't	O
appear	O
in	O
newer	O
CI+	B-Device
spec	O
versions	O
.	O
</s>
<s>
In	O
2011	O
,	O
version	O
1.3	O
of	O
the	O
CI+	B-Device
spec	O
was	O
released	O
(	O
later	O
,	O
was	O
replaced	O
with	O
CI+	B-Device
v1.3.1	O
and	O
then	O
with	O
,	O
still	O
commonly	O
referenced	O
as	O
CI+	B-Device
v1.3	O
)	O
.	O
</s>
<s>
The	O
main	O
features	O
added	O
by	O
CI+	B-Device
v1.3	O
to	O
CI+	B-Device
v1.2	O
are	O
:	O
</s>
<s>
a	O
new	O
Operator	O
Profile	O
resource	O
allowing	O
CAM	B-Device
to	O
adapt	O
non-standard	O
broadcast-specific	O
service	O
information	O
to	O
standard	O
DVB	B-Application
format	O
understandable	O
by	O
Host	O
.	O
</s>
<s>
With	O
the	O
development	O
of	O
CI+	B-Device
,	O
the	O
standard	O
has	O
now	O
come	O
under	O
the	O
umbrella	O
of	O
the	O
DVB	B-Application
standards	I-Application
organization.In	O
2014	O
,	O
DVB	B-Application
released	O
specification	O
,	O
defining	O
what	O
is	O
often	O
referred	O
as	O
"	O
CI+	B-Device
v1.4	O
"	O
.	O
</s>
<s>
The	O
main	O
features	O
added	O
by	O
ETSI	O
TS	O
103	O
205	O
to	O
CI+	B-Device
v1.3	O
are	O
:	O
</s>
<s>
CI	O
Plus™	O
browser	B-Application
extensions	O
(	O
interaction	O
channel	O
,	O
streaming	O
,	O
video	O
scaling	O
etc	O
.	O
)	O
</s>
<s>
letting	O
a	O
CI+	B-Device
CAM	B-Device
to	O
determine	O
if	O
its	O
Host	O
supports	O
an	O
advanced	O
application	O
environment	O
(	O
e.g.	O
</s>
<s>
allowing	O
CI+	B-Device
CAM	B-Device
applications	O
to	O
be	O
represented	O
in	O
the	O
Host	O
's	O
channel	O
line-up	O
in	O
form	O
of	O
virtual	O
channels	O
.	O
</s>
<s>
In	O
2018	O
,	O
ETSI	O
published	O
the	O
second	O
generation	O
DVB-CI	B-Device
standard	O
(	O
often	O
referred	O
to	O
as	O
CI+	B-Device
v2.0	O
)	O
:	O
.	O
</s>
<s>
The	O
main	O
evolution	O
of	O
this	O
version	O
is	O
to	O
add	O
USB	O
as	O
physical	O
layer	O
to	O
replace	O
the	O
aging	O
PC	B-Architecture
Card	I-Architecture
interface	O
.	O
</s>
<s>
CI+	B-Device
Host	O
and	O
CAM	B-Device
testing	O
and	O
certification	O
is	O
carried	O
out	O
by	O
(	O
formerly	O
Digital	O
TV	O
Labs	O
)	O
in	O
the	O
UK	O
,	O
Hong	O
Kong	O
,	O
Belgium	O
and	O
Poland	O
.	O
</s>
<s>
By	O
making	O
use	O
of	O
certificates	O
issued	O
by	O
a	O
trusted	O
certification	O
authority	O
,	O
a	O
secure	O
authenticated	O
channel	O
(	O
SAC	O
)	O
is	O
formed	O
between	O
a	O
CI+	B-Device
CAM	B-Device
and	O
television	O
receiver	O
(	O
Host	O
)	O
.	O
</s>
<s>
This	O
SAC	O
is	O
used	O
to	O
generate	O
a	O
shared	O
key	O
,	O
unique	O
per	O
a	O
CAM-Host	O
pair	O
,	O
which	O
protects	O
from	O
unauthorized	O
copying	O
the	O
content	O
marked	O
in	O
the	O
associated	O
URI	O
(	O
Usage	O
Rules	O
Info	O
)	O
as	O
a	O
content	O
which	O
needs	O
to	O
be	O
re-encrypted	O
on	O
its	O
way	O
from	O
CAM	B-Device
to	O
Host	O
after	O
removal	O
the	O
original	O
CA	O
or	O
DRM	O
scrambling	O
(	O
in	O
the	O
original	O
CI	O
standard	O
,	O
decrypted	O
content	O
could	O
be	O
sent	O
over	O
the	O
PCMCIA	B-Architecture
interface	O
only	O
in	O
unscrambled	O
form	O
)	O
.	O
</s>
<s>
CI+	B-Device
standard	O
allows	O
revocation	O
of	O
compromised	O
CI+	B-Device
Hosts	O
.	O
</s>
<s>
This	O
is	O
done	O
by	O
broadcasting	O
a	O
Service	O
Operator	O
Certificate	O
Revocation	O
List	O
(	O
SOCRL	O
)	O
in	O
a	O
DSM-CC	B-Algorithm
data	O
carousel	O
.	O
</s>
<s>
If	O
CAM	B-Device
detects	O
that	O
its	O
Host	O
's	O
ID	O
,	O
model	O
or	O
brand	O
is	O
listed	O
in	O
SOCRL	O
(	O
and	O
is	O
n't	O
listed	O
in	O
optional	O
SOCWL	O
-	O
Service	O
Operator	O
Certificate	O
White	O
List	O
)	O
,	O
the	O
CAM	B-Device
must	O
refuse	O
descrambling	O
the	O
content	O
marked	O
in	O
CI+	B-Device
URI	O
as	O
protected	O
.	O
</s>
<s>
A	O
SOCRL	O
is	O
created	O
and	O
signed	O
by	O
the	O
CI+	B-Device
Root-of-Trust	O
on	O
request	O
of	O
a	O
Service	O
Operator	O
.	O
</s>
<s>
To	O
prevent	O
replay	O
of	O
out-of-dated	O
SOCRL	O
and	O
SOCWL	O
,	O
they	O
must	O
be	O
broadcast	O
in	O
combination	O
with	O
RSD	O
(	O
Revocation	O
Signaling	O
Data	O
)	O
table	O
which	O
specifies	O
the	O
last	O
versions	O
of	O
SOCRL	O
and	O
SOCWL	O
and	O
their	O
location	O
in	O
the	O
DSM-CC	B-Algorithm
data	O
carousel	O
.	O
</s>
<s>
A	O
CI+	B-Device
1.3	O
compliant	O
Host	O
device	O
must	O
implement	O
MHEG-5	O
interactive	O
TV	O
engine	O
to	O
manage	O
navigation	O
of	O
the	O
user	O
within	O
an	O
interactive	O
TV	O
application	O
,	O
using	O
its	O
device	O
remote	O
control	O
.	O
</s>
<s>
Support	O
of	O
MHP	B-Device
or	O
HbbTV	B-Device
interactive	O
TV	O
engines	O
are	O
also	O
optional	O
.	O
</s>
<s>
CI+	B-Device
1.4	O
Hosts	O
may	O
optionally	O
support	O
the	O
MHEG-5	O
interactive	O
TV	O
engine	O
.	O
</s>
<s>
The	O
following	O
operators	O
have	O
currently	O
rolled	O
out	O
CI+	B-Device
support	O
or	O
plan	O
to	O
do	O
so	O
:	O
</s>
<s>
Mediaset	O
Premium	O
(	O
Digital	B-Application
terrestrial	I-Application
television	I-Application
)	O
-	O
needs	O
CI+	B-Device
slot	O
on	O
HD	O
television	O
to	O
descramble	O
High	O
Definition	O
channel	O
Premium	O
Calcio	O
HD	O
.	O
</s>
<s>
In	O
July	O
2009	O
the	O
largest	O
Cable	O
operator	O
in	O
the	O
Netherlands	O
,	O
Ziggo	O
,	O
announced	O
that	O
it	O
will	O
support	O
CI+	B-Device
based	O
Integrated	B-Device
Digital	I-Device
Television	I-Device
sets	O
(	O
IDTVs	O
)	O
actively	O
.	O
</s>
<s>
In	O
September	O
2009	O
the	O
first	O
batch	O
of	O
15,000	O
(	O
Shenzhen	O
State	O
Micro	O
Technology	O
Co.	O
,	O
Ltd	O
.	O
)	O
CI+	B-Device
CAMs	O
was	O
offered	O
by	O
various	O
Dutch	O
retailers	O
,	O
followed	O
in	O
October	O
2009	O
by	O
the	O
first	O
batch	O
of	O
Neotion	O
CAMs	O
.	O
</s>
<s>
Other	O
supporters	O
include	O
Canal+	O
,	O
and	O
conditional	B-Architecture
access	I-Architecture
companies	O
Irdeto	O
and	O
Conax	B-Device
.	O
</s>
<s>
In	O
2009	O
,	O
NDS	O
(	O
now	O
Cisco	O
)	O
announced	O
that	O
it	O
will	O
support	O
Kabel	O
Deutschland	O
to	O
deploy	O
CI+	B-Device
to	O
its	O
customers	O
.	O
</s>
<s>
In	O
2014	O
,	O
CI+	B-Device
CAMs	O
with	O
Cisco	O
VideoGuard	B-Device
CA	O
,	O
manufactured	O
by	O
were	O
deployed	O
at	O
D-Smart	O
,	O
KDG	O
(	O
Kabel	O
Deutschland	O
)	O
,	O
KBW	O
,	O
Sky	O
Deutschland	O
,	O
Tele	O
Columbus	O
etc	O
.	O
</s>
<s>
Many	O
of	O
Samsung	O
's	O
new	O
LCD	O
,	O
LCD	O
LED	O
and	O
Plasma	O
model	O
variants	O
with	O
CI+	B-Device
compatible	O
motherboards	O
,	O
although	O
there	O
were	O
some	O
incompatibilities	O
between	O
TV	O
and	O
UPC	O
and	O
RCS-RDS	O
CI+	B-Device
modules	O
,	O
even	O
with	O
models	O
certified	O
by	O
UPC	O
and	O
RCS-RDS	O
.	O
</s>
<s>
Panasonic	O
early	O
models	O
(	O
until	O
early	O
2011	O
)	O
with	O
CI+	B-Device
slots	O
needed	O
a	O
new	O
firmware	O
to	O
be	O
fully	O
CI+	B-Device
compatible	O
.	O
</s>
<s>
All	O
incompatibility	O
problems	O
were	O
solved	O
by	O
software	O
and	O
firmware	O
updates	O
,	O
or	O
sometimes	O
by	O
using	O
a	O
CI+	B-Device
card	O
or	O
module	O
with	O
other	O
firmware	O
.	O
</s>
<s>
All	O
models	O
produced	O
after	O
early	O
2011	O
are	O
fully	O
compatible	O
with	O
CI+	B-Device
.	O
</s>
<s>
Newer	O
Vestel	O
based	O
TV	O
sets	O
are	O
marking	O
the	O
fact	O
they	O
are	O
CI+	B-Device
certified	O
in	O
their	O
SHOP	O
MODE	O
(	O
or	O
DEMO	O
MODE	O
)	O
,	O
which	O
is	O
mentioning	O
,	O
beside	O
other	O
features	O
,	O
the	O
CI+	B-Device
compatibility	O
(	O
no	O
matter	O
DVB-T	O
,	O
DVB-C	O
,	O
DVB-S	O
)	O
,	O
or	O
simply	O
by	O
a	O
sticker	O
attached	O
on	O
the	O
front	O
of	O
the	O
set	O
.	O
</s>
<s>
Sometimes	O
,	O
however	O
in	O
many	O
cases	O
,	O
CI+	B-Device
compatibility	O
of	O
the	O
Vestel	O
sets	O
is	O
mentioned	O
on	O
the	O
package	O
,	O
beside	O
other	O
main	O
features	O
.	O
</s>
<s>
A	O
new	O
ETSI	O
working	O
group	O
will	O
be	O
working	O
on	O
Embedded	O
Common	B-Device
Interface	I-Device
(	O
ECI	O
)	O
.	O
</s>
