<s>
The	O
Teleplay	B-Device
Modem	I-Device
is	O
an	O
unreleased	O
modem	B-Application
prototype	O
for	O
the	O
Nintendo	O
Entertainment	O
System	O
(	O
NES	O
)	O
created	O
by	O
Keith	O
Rupp	O
and	O
Nolan	O
Bushnell	O
,	O
designed	O
to	O
eventually	O
provide	O
online	O
play	O
between	O
NES	O
,	O
Sega	B-Operating_System
Genesis	I-Operating_System
,	O
and	O
Super	B-Application
Nintendo	I-Application
Entertainment	I-Application
System	I-Application
.	O
</s>
<s>
The	O
first	O
prototype	O
,	O
called	O
the	O
Ayota	O
Modem	B-Application
,	O
has	O
a	O
maximum	O
speed	O
of	O
only	O
300	O
bit/s	O
,	O
too	O
slow	O
to	O
render	O
fullscreen	O
NES	O
quality	O
graphics	O
typical	O
of	O
an	O
action	O
game	O
.	O
</s>
<s>
He	O
continued	O
to	O
develop	O
the	O
modem	B-Application
,	O
changing	O
its	O
name	O
to	O
the	O
Teleplay	B-Device
Modem	I-Device
,	O
increasing	O
the	O
speed	O
to	O
2400	O
bit/s	O
.	O
</s>
<s>
Both	O
Nintendo	O
and	O
Sega	O
refused	O
to	O
license	O
the	O
Teleplay	B-Device
Modem	I-Device
or	O
the	O
games	O
developed	O
for	O
it	O
.	O
</s>
<s>
Sega	O
instead	O
licensed	O
AT&T	O
and	O
PF	O
Magic	O
to	O
develop	O
a	O
modem	B-Application
for	O
the	O
Sega	B-Operating_System
Genesis	I-Operating_System
called	O
the	O
Edge	O
16	O
,	O
but	O
AT&T	O
ultimately	O
dropped	O
plans	O
to	O
release	O
the	O
device	O
so	O
that	O
they	O
could	O
devote	O
their	O
attentions	O
to	O
developing	O
new	O
telephone	O
technologies	O
.	O
</s>
<s>
In	O
an	O
unrelated	O
venture	O
,	O
Catapult	O
Entertainment	O
later	O
developed	O
the	O
2400	O
bit/s	O
XBand	B-Application
modem	B-Application
,	O
similar	O
to	O
the	O
Teleplay	B-Device
Modem	I-Device
in	O
many	O
respects	O
.	O
</s>
