<s>
Web	B-Application
Call	I-Application
Server	O
is	O
unified	O
intermedia	O
server	O
software	O
developed	O
by	O
Flashphoner	O
.	O
</s>
<s>
browsers	O
(	O
Chrome	B-Application
,	O
Firefox	B-Application
,	O
Opera	B-Application
,	O
Safari	B-Application
,	O
Microsoft	B-Application
Edge	I-Application
,	O
Internet	B-Application
Explorer	I-Application
)	O
,	O
</s>
<s>
VoIP	B-Application
online	O
conference	O
services	O
,	O
</s>
<s>
SIP	B-Application
switches	O
,	O
</s>
<s>
IP	B-Algorithm
cameras	I-Algorithm
,	O
</s>
<s>
Adobe	B-Operating_System
Flash	I-Operating_System
Media	I-Operating_System
Server	I-Operating_System
and	O
Wowza	B-Application
Streaming	I-Application
Engine	I-Application
.	O
</s>
<s>
Web	B-Application
Call	I-Application
Server	O
can	O
be	O
configured	O
for	O
operation	O
in	O
networks	O
with	O
various	O
topology	O
,	O
e.g.	O
</s>
<s>
working	O
behind	O
corporate	O
NAT	O
and	O
serving	O
external	O
clients	O
using	O
public	O
IP	B-Algorithm
address	O
.	O
</s>
<s>
2010	O
-	O
Created	O
an	O
extension	O
/	O
plugin	O
for	O
Wowza	B-Application
Media	I-Application
Server	I-Application
,	O
which	O
allows	O
you	O
to	O
work	O
with	O
SIP	B-Application
.	O
</s>
<s>
2011	O
–	O
Had	O
made	O
design	O
to	O
replace	O
the	O
Wowza	B-Application
Media	I-Application
Server	I-Application
with	O
self	O
developed	O
software	O
based	O
on	O
RTMFP	B-Application
protocol	O
,	O
which	O
was	O
at	O
that	O
time	O
the	O
most	O
advanced	O
protocol	O
streaming	O
video	O
with	O
minimal	O
delay	O
.	O
</s>
<s>
As	O
a	O
result	O
was	O
created	O
RTMFP	B-Application
SIP	B-Application
Gateway	O
,	O
which	O
allowed	O
to	O
make	O
SIP	B-Application
calls	O
from	O
a	O
browser	O
with	O
support	O
for	O
Flash	B-Operating_System
Player	I-Operating_System
.	O
</s>
<s>
2013	O
-	O
The	O
rapid	O
development	O
of	O
WebRTC	B-Protocol
technology	O
made	O
to	O
implement	O
support	O
of	O
this	O
technology	O
.	O
</s>
<s>
As	O
a	O
result	O
,	O
version	O
Web	B-Application
Call	I-Application
Server	O
3	O
supported	O
both	O
protocols	O
(	O
WebRTC	B-Protocol
and	O
RTMFP	B-Application
)	O
for	O
SIP	B-Application
calls	O
from	O
a	O
browser	O
.	O
</s>
<s>
In	O
Chrome	B-Application
,	O
Firefox	B-Application
,	O
and	O
Opera	B-Application
browsers	I-Application
calls	O
began	O
to	O
stream	O
directly	O
from	O
the	O
browser	O
without	O
Flash	B-Operating_System
Player	I-Operating_System
.	O
</s>
<s>
2015	O
–	O
Based	O
on	O
the	O
modern	O
technological	O
basis	O
was	O
issued	O
Web	B-Application
Call	I-Application
Server	O
4	O
version	O
,	O
which	O
allowed	O
not	O
only	O
to	O
make	O
SIP	B-Application
calls	O
,	O
but	O
also	O
to	O
use	O
the	O
product	O
in	O
a	O
video	O
streaming	O
server	O
mode	O
and	O
broadcasts	O
.	O
</s>
<s>
Block	O
'	O
call	O
 '	O
was	O
responsible	O
for	O
the	O
integration	O
with	O
the	O
SIP	B-Application
,	O
and	O
'	O
streaming	O
 '	O
block	O
-	O
for	O
standard	O
video	O
streaming	O
functions	O
,	O
such	O
as	O
the	O
publication	O
of	O
an	O
arbitrary	O
number	O
of	O
video	O
streams	O
,	O
playback	O
of	O
video	O
streams	O
from	O
the	O
server	O
,	O
security	O
,	O
etc	O
.	O
</s>
<s>
2016	O
-	O
In	O
addition	O
to	O
RTMP	B-Operating_System
and	O
WebRTC	B-Protocol
have	O
been	O
added	O
support	O
for	O
new	O
additional	O
protocols	O
and	O
case	O
studies	O
:	O
Websockets	B-Protocol
protocol	O
for	O
streaming	O
to	O
iOS	B-Application
Safari	B-Application
,	O
RTSP	B-Protocol
protocol	O
broadcasts	O
from	O
IP	B-Algorithm
cameras	I-Algorithm
and	O
distribution	O
streams	O
,	O
RTMP	B-Operating_System
protocol	O
for	O
publishing	O
SIP-calls	O
on	O
the	O
CDN	O
network	O
,	O
WebRTC-record	O
calls	O
,	O
iOS	B-Application
SDK	O
,	O
and	O
official	O
support	O
for	O
Amazon	B-General_Concept
EC2	I-General_Concept
servers	O
.	O
</s>
