| Application
protocols in SS7 |
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| TUP (Telephone User Part) – is being replaced
by ISUP |
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| ISUP (ISDN User Part) – for all signalling
related to |
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| setting up,
maintaining, and releasing circuit switched |
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| connections |
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| MAP (Mobile User Part) – for transactions
between |
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| exchanges
(MSC, GMSC) and databases (HLR, EIR, AuC) |
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| in mobile
networks |
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| INAP (Intelligent Network Application Part) for
IN |
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| applications in
fixed networks |
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| CAP (CAMEL Application Part) for extended IN |
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| functionality
in mobile networks (where MAP is not |
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| sufficient ...) |
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