Signalling

•INAP: Intelligent Network Application Part •CAMEL: Customized Application for Mobile
GSM uses SS7 signalling for call control, mobility management, short messages and value-added services.

•MTP1-3: Message Transfer Part

•SCCP: Signalling Connection Control Part

•TCAP: Transaction Capabilities Application Part

•MAP: Mobile Application Part

•BSSAP: Base Station Subsystem Application Part

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Enhanced Logic