Signaling services supported by the SG7000 are processed on the SBPU/SBPE, as shown in Figure 1.

• After signaling messages reach the SBPU/SBPE following the incoming flow, the DISPATCH module dispatches signaling messages related to services to corresponding service processing modules for processing.

• After processing signaling messages, service modules return them to the DISPATCH module. The DISPATCH module then transfers the signaling messages to other network equipment following the outgoing flow.

Figure 1 Signaling service processing flow
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SIMM:Single IMSI Multi MSISDN	RBT:Ring Back Tone
MNP:Mobile Number Portability	DISPATCH: Service dispatch module

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