<s>
Web-based	B-Protocol
VoIP	I-Protocol
is	O
the	O
integration	O
of	O
voice	B-Application
over	I-Application
IP	I-Application
technologies	O
into	O
the	O
facilities	O
and	O
methodologies	O
of	O
the	O
World-Wide	O
Web	O
.	O
</s>
<s>
Instead	O
of	O
using	O
dedicated	O
,	O
hardware-based	O
VoIP	B-Application
devices	O
,	O
such	O
as	O
IP	B-Device
phones	I-Device
,	O
analog	B-Protocol
telephone	I-Protocol
adapters	I-Protocol
,	O
or	O
integrated	O
VoIP/Internet	O
access	O
routers	O
,	O
services	O
are	O
provided	O
via	O
a	O
web	O
page	O
and	O
the	O
facilities	O
of	O
the	O
user	O
's	O
computer	O
or	O
hand-held	O
device	O
for	O
accessing	O
and	O
operating	O
a	O
locally	O
attached	O
head	O
set	O
,	O
and	O
microphone	O
.	O
</s>
<s>
This	O
is	O
assisted	O
by	O
various	O
software	O
components	O
such	O
as	O
Flash	B-Operating_System
,	O
Active	B-Application
X	I-Application
,	O
Silverlight	B-Application
,	O
Java	B-Application
applet	I-Application
or	O
browser	O
plugins	O
like	O
NPAPI	B-Protocol
.	O
</s>
<s>
Using	O
click-to-call	B-Application
,	O
for	O
example	O
,	O
a	O
web	O
user	O
may	O
click	O
on	O
a	O
telephone	O
number	O
,	O
or	O
some	O
other	O
suitable	O
icon	O
,	O
embedded	O
in	O
a	O
corporate	O
web	O
site	O
to	O
initiate	O
a	O
web-based	O
telephone	O
call	O
with	O
a	O
customer	O
service	O
representative	O
without	O
leaving	O
the	O
web	O
site	O
or	O
using	O
any	O
other	O
addition	O
telephony	O
equipment	O
.	O
</s>
