This ETS describes the requirements for the signalling system and the procedures needed at the application level in order to fulfil these signalling needs. Clauses 1 to 4 are related to general aspects such as terminology, mobile network configuration and other protocols required by MAP. MAP consists of a set of MAP services which are provided to MAP service-users by a MAP service-provider. Clauses 5 to 10 of this ETS describe the MAP services. Clauses 11 to 14 define the MAP protocol specification and the behaviour of service provider (protocol elements to be used to provide MAP services, mapping on to TC service primitives, abstract syntaxes...). Clauses 15 to 21 describe the MAP user procedures which make use of MA services.