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13.2 IS-95 AIR INTERFACE 405TABLE 13.2-4 Reverse Traffic Channel MessagesMessage TypeFunctionAuthentication ChallengeAuthenticationData BurstShort message service, broadcastHandoff CompletionHandoffOrigination ContinuationCall originationOrder See Table 13.2-5Periodic Pilot Strength Measurement HandoffPilot Strength MeasurementHandoffPower MeasurementPower controlSend Burst DTMFFeature controlService Connect CompletionService negotiationService Option ControlService negotiationService RequestService negotiationService ResponseService negotiationTMSI Assignment CompletionPrivacy13.2.5 IS-95 Call SequencesThe IS-95 specification describes call sequences in terms of call states for the mobilestation,. MS initialization state. MS idle state (monitor Paging Channel). MS system access state. MS control on the Traffic Channel stateand in terms of call processing types for the base station,. Pilot and Sync Channel processing (interacts with the MS initialization state). Paging Channel processing (interacts with the MS idle and MS system accessstates)TABLE 13.2-5 Order MessagesOrder Message Function Forward Channels a Reverse Channels aBase station acknowledgmentP TConnectTContinuous DTMS tone T TMobile station acknowledgmentA TParameter updateTParameter update confirmationTRegistration acceptedPRegistration requestPRelease P T A TService option request T TService option response T TShared secret data update confirmationA Ta A, Reverse access channel; P, paging channel; T, traffic channel.