<s>
Server	B-Protocol
Routing	I-Protocol
Protocol	I-Protocol
(	O
SRP	O
)	O
is	O
the	O
proprietary	O
network	O
protocol	O
used	O
to	O
transfer	O
data	O
between	O
a	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
and	O
the	O
Research	O
In	O
Motion	O
BlackBerry	B-Operating_System
infrastructure	O
.	O
</s>
<s>
SRP	O
communication	O
takes	O
place	O
on	O
TCP	B-Protocol
port	O
3101	O
by	O
default	O
.	O
</s>
<s>
During	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
installation	O
,	O
the	O
unique	O
Server	B-Protocol
Routing	I-Protocol
Protocol	I-Protocol
Identifier	O
(	O
SRP	O
ID	O
)	O
and	O
SRP	O
Authentication	O
Key	O
must	O
be	O
entered	O
.	O
</s>
<s>
The	O
SRP	O
ID	O
and	O
SRP	O
Authentication	O
Key	O
register	O
and	O
authenticate	O
the	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
on	O
the	O
network	O
.	O
</s>
<s>
The	O
SRP	O
ID	O
uniquely	O
identifies	O
the	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
on	O
the	O
network	O
.	O
</s>
<s>
When	O
the	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
connects	O
to	O
the	O
BlackBerry	B-Operating_System
Infrastructure	O
,	O
it	O
must	O
provide	O
these	O
two	O
pieces	O
of	O
information	O
to	O
connect	O
and	O
open	O
a	O
session	O
.	O
</s>
<s>
If	O
the	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
is	O
connected	O
to	O
the	O
BlackBerry	B-Operating_System
Infrastructure	O
and	O
another	O
server	O
attempts	O
to	O
connect	O
using	O
the	O
same	O
SRP	O
ID	O
and	O
Authentication	O
Key	O
,	O
the	O
BlackBerry	B-Operating_System
Infrastructure	O
drops	O
the	O
connection	O
to	O
the	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
.	O
</s>
<s>
When	O
a	O
BlackBerry	B-Operating_System
device	O
attempts	O
to	O
send	O
a	O
message	O
,	O
it	O
must	O
include	O
the	O
SRP	O
ID	O
for	O
the	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
.	O
</s>
<s>
Note	O
:	O
In	O
the	O
Service	O
Book	O
menu	O
on	O
the	O
BlackBerry	B-Operating_System
device	O
,	O
open	O
the	O
Desktop	O
(	O
CMIME	O
)	O
service	O
book	O
.	O
</s>
<s>
The	O
specified	O
unique	O
identifier	O
(	O
UID	O
)	O
value	O
is	O
the	O
SRP	O
ID	O
of	O
the	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
from	O
which	O
the	O
BlackBerry	B-Operating_System
device	O
attempts	O
to	O
send	O
messages	O
.	O
</s>
<s>
When	O
the	O
BlackBerry	B-Operating_System
device	O
sends	O
a	O
message	O
,	O
it	O
arrives	O
at	O
the	O
BlackBerry	B-Operating_System
Infrastructure	O
.	O
</s>
<s>
The	O
BlackBerry	B-Operating_System
Infrastructure	O
uses	O
this	O
information	O
to	O
send	O
the	O
message	O
to	O
the	O
corresponding	O
BlackBerry	B-Application
Enterprise	I-Application
Server	I-Application
for	O
decryption	O
and	O
processing	O
.	O
</s>
