Page 72 - eBOOK FUNDAMENTAL OF TELECOMMUNICATION NETWORK

Because SCP represents databases, it follows that

TCAP is mainly used to access databases in the SS7

signaling network.

Transmission of TCAP messages end to end is

performed by using the SCCP.

Signaling Connection Control Part (SCCP)

Signaling Connection Control Part (SCCP) is a higher

level protocol than MTP that provides end-to-end

routing. SCCP is required for routing TCAP

messages to their proper database.

Provides a connection–oriented and connectionless

(connectionless means that each message is

independently routed through the signaling

network) network services through transfer of MTP3

signaling messages between SSP nodes in the

network.

Thus, MTP layers allow transfer of signaling

messages from one signaling point to another (i.e

from one node to another node in the SS7 network,

while SCCP enables transmission of signaling

message end-to-end ( from sender application in

the sending signaling point to recipient application

in the receiving signaling point)

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