lThe closing sequence can only appear after an opening sequence or a continuing sequence. The sequence may contain none, one or several user specific service-primitives if the MAP-CLOSE primitive specifies normal release. If no user specific service-primitive is included, then this will correspond to sending an empty End message in TC. If more than one user specific service-primitive is included, all are to be sent in the same End message. If prearranged end is specified, the sequence cannot contain any user specific service-primitive. The MAP-CLOSE primitive must be sent after all user specific service-primitives have been delivered to the MAP service-provider.

lA MAP service-user can issue a MAP-U-ABORT primitive at any time after the MAP session has been opened or as a response to an attempt to open a MAP session. In addition, after receiving the session establishment request, the MAP service-user can use the request as a response to reject the session establishment. If the MAP service-provider exists in the session, the MAP service-provider can issue a MAP-P-ABORT primitive at any time to terminate the session.

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