Aicent,Inc.ProprietaryandConfidentialAICENT1AgendaPart1:3G/GPRSRoamingOverview„3G/UMTSOverview„GPRS/UMTSRoamingeXchange„GPRS/UMTSRoamingGuidelines(PRD)„AicentGRXNetwork„GRXPeeringNetwork„IO-MMSandMMSGatewayPart2:TechnicalImplementationofGRXServices„3GRXNetworkTopology„3GRXConnectionSetup„3GRXEnd-to-EndQoS„GPRSDNSConfigurationandSetup„FirewallConfiguration„SetupNewRoamingPartner„NetworkSupportProcedureAicent,Inc.ProprietaryandConfidential2Agenda(Part1)3G/UMTSOverviewGPRS/UMTSRoamingeXchangeGPRS/UMTSRoamingGuidelines(PRD)AicentGRXNetworkGRXPeeringNetworkIO-MMSandMMSGatewayAicent,Inc.ProprietaryandConfidential33G/UMTSOverview–GSMEvolutionAicent,Inc.ProprietaryandConfidential43G/UMTSOverviewRadioAccessandCoreNetworkEvolutionGSM„2G–OriginalGSMSystemFixedStandard,OpenInterfaceTelephoneNetwork(PSTN)GSMBaseGSMStationSystemCoreNetwork(BSS)(CircuitSwitched)ISDN/FixedDataNetworkOneofthemostimportantfactorsinGSM’ssuccessisthestandardopeninterfacethathaveenabledanyvendortosupplyanyelementsofthenetwork,andhaveletoperatorsworldwidedeploymulti-vendorsystemsoftheirchoiceAicent,Inc.ProprietaryandConfidential53G/UMTSOverviewRadioAccessandCoreNetworkEvolutionGSM„2.5G–GPRSStandard,OpenInterfacePSTN,ISDNCircuitSwitchedDomainGSM/GPRSRadioAccessNetworkPacketSwitchedDomainInternet/IntranetGSMPhase2+(2.5G)providesasignificantenhancementbyaddingtheGeneralPacketRadioService(GPRS),an“Always-on”,withdate-rateupto171kbit/sconnectiontoPacketdatanetwork,enablinganearlytasteof“3G-like”servicesAicent,Inc.ProprietaryandConfidential63G/UMTSOverviewRadioAccessandCoreNetworkEvolutionGSM„3G–UMTSStandard,OpenInterfacePSTN,ISDNGSM/EDGERadioAccessNetwork(GERAN)CommonCoreNetworkCircuit&PacketUniversalDomainTerrestrialRadioAccessInternet/Multi-ModeNetworkIntranetTerminal(UTRAN)3Goperatorshavechoiceofoffering3Gserviceseitherthroughpre-3GradioaccessEDGEorUMTSorboth.“Duel”radioaccessallows3Goperator