TRECQSup4509PMSWE060823125809.docx
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TRECQSup4509PMSWE060823125809.docx
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TRECQSup4509PMSWE060823125809
INTERNATIONALTELECOMMUNICATIONUNION
ITU-T
Series Q
TELECOMMUNICATION
STANDARDIZATIONSECTOR
OFITU
Supplement 45
(09/2003)
SERIESQ:
SWITCHINGANDSIGNALLING
TechnicalreportTRQ.2815
RequirementsforinterworkingBICC/ISUPnetworkwithoriginating/destinationnetworksbasedonsessioninitiationprotocolandsessiondescriptionprotocol
CAUTION!
PREPUBLISHEDRECOMMENDATION
ThisprepublicationisanuneditedversionofarecentlyapprovedRecommendation.It willbereplacedbythepublishedversionafterediting.Therefore,therewillbedifferencesbetweenthisprepublicationandthepublishedversion.
FOREWORD
TheInternationalTelecommunicationUnion(ITU)istheUnitedNationsspecializedagencyinthefieldoftelecommunications.TheITUTelecommunicationStandardizationSector(ITU-T)isapermanentorganofITU.ITU-Tisresponsibleforstudyingtechnical,operatingandtariffquestionsandissuingRecommendationsonthemwithaviewtostandardizingtelecommunicationsonaworldwidebasis.
TheWorldTelecommunicationStandardizationAssembly(WTSA),whichmeetseveryfouryears,establishesthetopicsforstudybytheITUTstudygroupswhich,inturn,produceRecommendationsonthesetopics.
TheapprovalofITU-TRecommendationsiscoveredbytheprocedurelaiddowninWTSAResolution 1.
InsomeareasofinformationtechnologywhichfallwithinITU-T'spurview,thenecessarystandardsarepreparedonacollaborativebasiswithISOandIEC.
NOTE
Inthispublication,theexpression"Administration"isusedforconcisenesstoindicatebothatelecommunicationadministrationandarecognizedoperatingagency.
Compliancewiththispublicationisvoluntary.However,thepublicationmaycontaincertainmandatoryprovisions(toensuree.g.interoperabilityorapplicability)andcompliancewiththepublicationisachievedwhenallofthesemandatoryprovisionsaremet.Thewords"shall"orsomeotherobligatorylanguagesuchas"must"andthenegativeequivalentsareusedtoexpressrequirements.Theuseofsuchwordsdoesnotsuggestthatcompliancewiththepublicationisrequiredofanyparty.
INTELLECTUALPROPERTYRIGHTS
ITUdrawsattentiontothepossibilitythatthepracticeorimplementationofthispublicationmayinvolvetheuseofaclaimedIntellectualPropertyRight.ITUtakesnopositionconcerningtheevidence,validityorapplicabilityofclaimedIntellectualPropertyRights,whetherassertedbyITUmembersorothersoutsideofthepublicationdevelopmentprocess.
Asofthedateofapprovalofthispublication,ITU[had/hadnot]receivednoticeofintellectualproperty,protectedbypatents,whichmayberequiredtoimplementthispublication.However,implementorsarecautionedthatthismaynotrepresentthelatestinformationandarethereforestronglyurgedtoconsulttheTSBpatentdatabase.
© ITU 2003
Allrightsreserved.Nopartofthispublicationmaybereproduced,byanymeanswhatsoever,withoutthepriorwrittenpermissionofITU.
CONTENTS
1.Scopeofdocument6
2.References7
3.Abbreviations10
4.Definitions10
5.SIPInterworkingArchitectures11
5.1.SIPtoBICC[IPorATM]11
5.2.BICC[IPorATM]toSIP12
5.3.SIPtoISUP12
5.4.ISUPtoSIP13
5.5.ISUPtoSIP-I13
5.6.SIP-ItoISUP15
5.7.SIP-ItoBICC15
5.8.BICCtoSIP-I17
5.9.ArchitectureoftheInterworkingFunction17
6.CapabilitiesSupportedatInterworkingServingNode20
6.1.SIPProfilesforInterworkingBetweenSIPandBICC/ISUP20
6.1.1ProfileA21
6.1.1.1MappingofBearerControlProtocols24
6.1.2ProfileB25
6.1.2.1MappingofBearerControlProtocols28
6.1.3SIPProfileCforInterworkingBetweenSIPwithMIMEEncodingofISUPandBICC/ISUP29
6.1.3.1MappingofBearerControlProtocols35
7.TRUSTMODEL35
8.Tones,AnnouncementsandSwitchThrough37
Table61/TRQ.2815-Inter-workingCapabilitiesbetweenBICCandSIPprofileA22
Table62/TRQ.2815-Inter-workingCapabilitiesbetweenSIPprofileAandBICC/ISUP24
Table63/TRQ.2815-Inter-workingCapabilitiesbetweenSIPprofileBandBICC/ISUP26
Table64/TRQ.2815-Inter-workingCapabilitiesbetweenSIPprofileBandBICC/ISUP28
Table65/TRQ.2815Inter-workingCapabilitiesbetweenBICC/ISUPandSIPprofileC32
Table66/TRQ.2815-Inter-workingCapabilitiesbetweenSIPprofileCandBICC/ISUP35
Figure11/TRQ2815-InterfaceReferenceModel6
Figure51/TRQ.2815-SIPtoBICC[IPorATM]NNI,withType1Gateway11
Figure52/TRQ.2815-SIPtoBICCNNI,withType2Gateway12
Figure53/TRQ.2815-SIPtoISUPNNI,withType1Gateway13
Figure54/TRQ2815-ISUPtoSIP-INNIwithType3Gateways14
Figure55/TRQ2815-ISUPtoSIP-INNIwithType3Gateways14
Figure56/TRQ2815-BICCtoSIP-INNI,withType3Gateways15
Figure57/TRQ2815-BICCtoSIP-INNI,withType3&4Gateways16
Figure58/TRQ2815-BICCtoSIP-INNI,withType3Gateways16
Figure59/TRQ2815-BICCtoSIP-INNI,withType4Gateways17
Figure510/TRQ2815-SIP/BICCinterworkingnodeforIP/IPcase18
Figure511/TRQ.2815-SIP/BICCinterworkingnodeforIP/ATMcase18
Figure512/TRQ2815-SIP/BICCinterworkingnodeforIP/IPcasewithnomedialayerdevice19
Figure513/TRQ.2815–SIP[SIP-I]/ISUPinterworkingnodeforIP/TDMcase20
Figure61/TRQ.2815-ProfileScopeforSIPInterworkingwithBICC/ISUPwithaType1Gateway21
Figure62/TRQ.2815-ProfileScopeforSIPInterworkingwithBICC/ISUPwithaType2Gateway25
Figure63/TRQ.2815-ProfileScopeforSIPwithMIMEencodingofISUPInterworkingwithBICC/ISUPwithType3Gateways29
Figure64/TRQ.2815-ProfileScopeforSIP,withMIMEEncodingofISUP,InterworkingwithBICC/ISUPwithType3&4Gateways29
Figure65/TRQ.2815-ProfileScopeforSIPwithMIMEencodingofISUPInterworkingwithBICC/ISUPwithType3Gateways30
Figure66/TRQ.2815-ProfileScopeforSIP,withMIMEEncodingofISUP,InterworkingwithBICC/ISUPwithType4Gateway30
Figure67/TRQ2815-ProfileforSIP,withMIMEEncodingofISUP,InterworkingwithBICC/ISUPwithType3Gateway.31
Figure71/TRQ.2815-Relationshipofinterworkingandpolicyfunctions36
SUMMARY
ThisSupplementtoITU-TQ-SeriesRecommendationsisatechnicalreportontheprocedures,informationflowsandinformationelementsneededtointerworkBearerIndependentCallControl(BICC)peer-to-peerprotocol(i.e.,Q.1902)andISDNUserPart(ISUP)protocol(i.e.,Q.761-4,Q.73y.x,Q.765.x,Q.769.x),withSessionInitiationProtocol(SIP)andSessionDescriptionProtocol(SDP)attheBICCInterfaceServingNode(ISN).TheSIP/SDPisassumedona“NetworktoNetworkInterface”(NNI)betweentheBICC/ISUPnetworkandaSIPnetwork,whichisanoriginatingorterminating/destinationnetwork.
1.Scopeofdocument
ThisdocumentprovidestherequirementsforspecifyingtheinterworkingbetweenBearerIndependentCallControl(BICC)peer-to-peerprotocol(i.e.,Q.1902)andISDNUserPart(ISUP)protocol(i.e.,Q.761-4,Q.73y.x,Q.765.x,Q.769.x),withSessionInitiationProtocol(SIP)aswellasSessionDescriptionProtocol(SDP)attheBICCInterfaceServingNode(ISN).TheSIP/SDPisassumedona“NetworktoNetworkInterface”(NNI)betweentheBICC/ISUPnetworkandaSIPbasednetwork,whichisanoriginating,transit,oraterminating/destinationnetwork.Theinterworkingshouldsupportonlyservicesorcapabilitiescommonlyapplicabletobothnetworks.
ThescopeofthisdocumentisillustratedinFigure11,withanNNIinterfacebetweentheSIP/SIP-InetworkandtheBICC/ISUPnetwork.
Figure11/TRQ2815-InterfaceReferenceModel
ThefollowingNNIconfigurationsaresupported,withvariousgatewaytypes:
∙SIPtoBICC[IPorATM]
∙BICC[IPorATM]toSIP
∙SIPtoISUP
∙ISUPtoSIP
∙ISUPtoSIP-I
∙SIP-ItoISUP
∙SIP-ItoBICC
∙BICCtoSIP-I
TheIWFissupportedinthefollowingexchanges:
∙OriginatingExchange;
∙IntermediateNationalExchange;
∙OutgoingInternationalExchange;
∙IntermediateInternationalExchange;
∙IncomingInternationalExchange;
∙DestinationExchange;or
∙StandaloneUnit.
InterworkingwithaccessprotocolsattheUNIisdoneviaaconcatenationwithISUP.
2.References
ThefollowingITU-TRecommendationsandotherreferencescontainprovisions,whichthroughreferenceinthistextconstituteprovisionsofthisRecommendation.Atthetimeofpublication,theeditionsindicatedwerevalid.AllRecommendationsandotherreferencesaresubjecttorevisions;allusersofthisRecommendationarethereforeencouragedtoinvestigatethepossibilityofapplyingthemostrecenteditionoftheRecommendationsandotherreferenceslistedbelow.AlistofthecurrentlyvalidITU-TRecommendationsisregularlypublished.
[1]ITU-TRecommendationsQ.761toQ.764(2000)–SpecificationsofSignallingSystemNo.7ISDNUserPart(ISUP).
[2]ITU-TRecommendationsQ.1902.1toQ.1902.4(2001)–SpecificationsoftheBearerIndependentCallControlProtocol(BICC).
[3]“SIP:
SessionInitiationProtocol”,RFC3261,InternetEngineeringTaskForce,June2002.
[4]“SDP:
SessionDescriptionProtocol”,RFC 2327,InternetEngineeringTaskForce,April1998.
[5]"RTPProfileforAudioandVideoConferenceswithMinimalControl",RFC3551,InternetEngineeringTaskForce,July2003.
[6]“IntegrationofResourceManagementandSIPforIPTelephony”,RFC3312,InternetEngineeringTaskForce,October2002.
[7]"PrivateExtensionstotheSessionInitiationProtocol(SIP)forAssertedIdentitywithinTrustedNetworks",RFC3325,InternetEngineeringTaskForce,November2002.
[8]“TheSIPINFOmethod”,RFC2976,InternetEngineeringTaskForce,October2000.
[9]“MIMEmediatypesforISUPandQSIGobjects”,RFC3204[19],InternetEngineeringTaskForce,December2001.
[10]
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