<s>
A	O
signaling	B-Protocol
gateway	I-Protocol
is	O
a	O
network	O
component	O
responsible	O
for	O
transferring	O
signaling	O
messages	O
(	O
i.e.	O
</s>
<s>
Transport	O
conversion	O
is	O
often	O
from	O
SS7	O
to	O
IP	B-Protocol
.	O
</s>
<s>
A	O
SIGTRAN	O
Signaling	B-Protocol
Gateway	I-Protocol
is	O
a	O
network	O
component	O
that	O
performs	O
packet	O
level	O
translation	O
of	O
signaling	O
from	O
common	O
channel	O
signaling	O
(	O
based	O
upon	O
SS7	O
)	O
to	O
SIGTRAN	O
signaling	O
(	O
based	O
upon	O
IP	B-Protocol
)	O
.	O
</s>
<s>
The	O
concept	O
of	O
the	O
SIGTRAN	O
signaling	B-Protocol
gateway	I-Protocol
was	O
introduced	O
in	O
the	O
IETF	O
document	O
:	O
RFC	O
2719	O
:	O
Architectural	O
Framework	O
for	O
Signaling	O
Transport	O
.	O
</s>
<s>
A	O
signaling	B-Protocol
gateway	I-Protocol
can	O
be	O
implemented	O
as	O
an	O
embedded	O
component	O
of	O
some	O
other	O
network	O
element	O
,	O
or	O
can	O
be	O
provided	O
as	O
a	O
stand-alone	O
network	O
element	O
.	O
</s>
<s>
For	O
example	O
:	O
a	O
signaling	B-Protocol
gateway	I-Protocol
is	O
often	O
part	O
of	O
a	O
softswitch	B-Device
in	O
modern	O
VoIP	B-Application
deployments	O
.	O
</s>
<s>
The	O
signaling	B-Protocol
gateway	I-Protocol
function	O
can	O
also	O
be	O
included	O
within	O
the	O
larger	O
operational	O
domain	O
of	O
a	O
Signal	O
Transfer	O
Point	O
(	O
STP	O
)	O
.	O
</s>
<s>
Protocol	O
conversion	O
gateways	O
can	O
also	O
convert	O
from	O
one	O
network	O
operational	O
paradigm	O
to	O
another	O
–	O
for	O
example	O
,	O
SIP	B-Application
to	O
ISUP	B-Protocol
for	O
call	O
control	O
,	O
SIP	B-Application
to	O
TCAP	O
for	O
address	O
translation	O
,	O
or	O
SIP	B-Application
to	O
MAP	B-Protocol
for	O
location	O
or	O
presence	O
.	O
</s>
