CSTA-get-message-waiting-indicator { iso( 1) identified-organization( 3) icd-ecma( 12) standard( 0) csta3( 285) get-message-waiting-indicator( 267) } DEFINITIONS ::= BEGIN IMPORTS OPERATION, ERROR FROM Remote-Operations-Information-Objects {joint-iso-itu-t remote-operations(4) informationObjects(5) version1(0) } -- Data Types -- universalFailure FROM CSTA-error-definition { iso( 1) identified-organization( 3) icd-ecma( 12) standard( 0) csta3( 285) error-definition( 120) } DeviceID FROM CSTA-device-identifiers { iso( 1) identified-organization( 3) icd-ecma( 12) standard( 0) csta3( 285) device-identifiers( 123) } CSTACommonArguments FROM CSTA-extension-types { iso( 1) identified-organization( 3) icd-ecma( 12) standard( 0) csta3( 285) extension-types( 129) }; getMessageWaitingIndicator OPERATION ::= { ARGUMENT GetMessageWaitingIndicatorArgument RESULT GetMessageWaitingIndicatorResult ERRORS {universalFailure } CODE local: 267 } GetMessageWaitingIndicatorArgument ::= SEQUENCE { device DeviceID, extensions CSTACommonArguments OPTIONAL } GetMessageWaitingIndicatorResult ::= SEQUENCE { messageWaitingOn BOOLEAN, deviceForMessage DeviceID OPTIONAL, lampIsPresent BOOLEAN OPTIONAL, extensions CSTACommonArguments OPTIONAL } END -- of CSTA-get-message-waiting-indicator