<s>
The	O
Multi-Vendor	B-Architecture
Integration	I-Architecture
Protocol	I-Architecture
(	O
MVIP	B-Architecture
)	O
is	O
a	O
hardware	B-General_Concept
bus	I-General_Concept
for	O
computer	O
telephony	O
integration	O
(	O
Audiotex	O
)	O
equipment	O
,	O
a	O
PCM	O
data	B-General_Concept
highway	I-General_Concept
for	O
interconnecting	O
expansion	O
boards	O
inside	O
a	O
PC	B-Device
.	O
</s>
<s>
Used	O
to	O
build	O
call	O
center	O
equipment	O
using	O
regular	O
PCs	B-Device
,	O
MVIP	B-Architecture
provides	O
a	O
second	O
communications	O
bus	O
within	O
the	O
computer	O
that	O
can	O
multiplex	O
up	O
to	O
256	O
full-duplex	O
voice	O
channels	O
from	O
one	O
voice	O
card	O
to	O
another	O
.	O
</s>
<s>
MVIP	B-Architecture
products	O
make	O
a	O
PC	B-Device
perform	O
like	O
a	O
small-scale	O
PBX	O
.	O
</s>
<s>
The	O
protocol	O
accommodated	O
for	O
a	O
variety	O
of	O
expansion	O
boards	O
,	O
including	O
trunk	O
interfaces	O
(	O
usually	O
T1	B-Protocol
or	O
ISDN	B-Protocol
)	O
,	O
voice	O
processing	O
boards	O
equipment	O
speech	B-Application
recognition	I-Application
or	O
fax	O
processing	O
.	O
</s>
<s>
Each	O
board	O
could	O
optionally	O
provide	O
a	O
switch	O
that	O
could	O
interconnect	B-General_Concept
voice	O
channels	O
on	O
the	O
bus	O
,	O
allowing	O
for	O
a	O
flexible	O
routing	O
of	O
calls	O
within	O
the	O
MVIP	B-Architecture
bus	O
.	O
</s>
<s>
The	O
MVIP	B-Architecture
bus	O
was	O
promoted	O
as	O
an	O
alternative	O
to	O
the	O
then-dominant	O
PEB	O
bus	O
by	O
Dialogic	O
Corporation	O
which	O
had	O
much	O
less	O
capacity	O
and	O
was	O
not	O
an	O
open	O
standard	O
.	O
</s>
