<s>
Avaya	B-Device
IP	I-Device
Phone	I-Device
1140E	I-Device
in	O
telecommunications	O
is	O
a	O
desktop	O
Internet	B-Protocol
Protocol	I-Protocol
client	O
from	O
1100-series	B-Protocol
manufactured	O
by	O
Avaya	O
for	O
unified	B-Protocol
communications	I-Protocol
.	O
</s>
<s>
The	O
phone	O
can	O
operate	O
on	O
the	O
Session	B-Application
Initiation	I-Application
Protocol	I-Application
(	O
SIP	O
)	O
or	O
UNIStim	B-Protocol
protocols	O
.	O
</s>
<s>
This	O
device	O
has	O
an	O
integrated	O
10/100/1000BASE	O
-T	O
auto-sensing	O
Ethernet	O
switch	O
with	O
two	O
ports	O
and	O
an	O
integrated	O
USB	O
port	O
,	O
and	O
is	O
Bluetooth	O
capable	O
.	O
</s>
<s>
The	O
SIP	O
version	O
of	O
this	O
phone	O
has	O
full	O
IPv6	B-Protocol
functionality	O
and	O
only	O
requires	O
2.9	O
watts	O
of	O
power	O
.	O
</s>
<s>
As	O
such	O
it	O
began	O
as	O
a	O
UNIStim	B-Protocol
only	O
phone	O
which	O
meant	O
that	O
the	O
phone	O
was	O
primarily	O
supported	O
with	O
only	O
Nortel	O
manufactured	O
voice	O
PBX	O
systems	O
.	O
</s>
<s>
This	O
meant	O
that	O
the	O
phone	O
could	O
now	O
be	O
used	O
with	O
a	O
wide	O
variety	O
of	O
PBX	O
systems	O
including	O
those	O
produced	O
by	O
Nortel	O
,	O
Avaya	O
and	O
even	O
open	O
source	O
PBX	O
systems	O
such	O
as	O
the	O
Asterisk	B-Language
operating	O
system	O
.	O
</s>
<s>
In	O
2010	O
a	O
VPN	B-Application
client	I-Application
was	O
added	O
to	O
the	O
firmware	O
as	O
of	O
release	O
0623C7F	O
.	O
</s>
<s>
A	O
remote	O
worker	O
location	O
with	O
a	O
broadband	O
Internet	O
connection	O
can	O
use	O
the	O
phone	O
's	O
VPN	B-Application
capability	O
to	O
securely	O
establish	O
an	O
IP	B-Protocol
tunnel	I-Protocol
back	O
to	O
the	O
corporate	O
network	O
,	O
extending	O
a	O
standard	O
voice	O
telephone	O
extension	O
to	O
any	O
location	O
on	O
the	O
Internet	O
.	O
</s>
