MTP and ISUP are only used when a database needs to be accessed, but TCAP and SCCP are used for normal call connection.

Question

Quizplus · Accepted Answer

MTP (Message Transfer Part) and ISUP (ISDN User Part) are used for setting up, managing, and releasing voice calls in the traditional Public Switched Telephone Network (PSTN) and not just for database access. TCAP (Transaction Capabilities Application Part) and SCCP (Signalling Connection Control Part) are used for database queries (like number translation or mobile subscriber location) in addition to other network services, not just for normal call connections.

MTP and ISUP Are Only Used When a Database Needs