<s>
CoolTalk	B-Protocol
was	O
an	O
Internet	B-Application
telephony	I-Application
tool	O
included	O
as	O
a	O
plugin	O
in	O
Netscape	B-Protocol
Navigator	I-Protocol
3.0	O
,	O
released	O
in	O
1996	O
.	O
</s>
<s>
It	O
included	O
an	O
answering	O
machine	O
and	O
a	O
shared	B-Protocol
whiteboard	I-Protocol
.	O
</s>
<s>
The	O
shared	B-Protocol
whiteboard	I-Protocol
supported	O
text	O
and	O
graphics	O
,	O
including	O
TIFF	O
,	O
GIF	O
,	O
JPEG	O
,	O
BMP	O
,	O
EPS	O
,	O
TARGA	O
,	O
RASTER	B-Algorithm
,	O
and	O
SGI	O
files	O
.	O
</s>
<s>
It	O
was	O
supported	O
on	O
Windows	B-Application
95	I-Application
,	O
Windows	B-Device
NT	I-Device
,	O
Windows	B-Application
3.1	I-Application
,	O
MacOS	B-Application
,	O
SunOS	B-Operating_System
,	O
Solaris	O
,	O
HP-UX	B-Application
,	O
Digital	B-Operating_System
Unix	I-Operating_System
,	O
and	O
IRIX	B-Operating_System
.	O
</s>
