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!VAILABLEATTRIBUTESOCTETX+
4HESAMECODINGASOCTETX+
./4%3
4HESEVALUESWEREDEFINEDIN2ECOMMENDATION1
!DESCRIPTIONOF4ABLE
1ISFOUNDIN1
#ODINGOF#HANNELTYPE
4HECHANNELTYPEISCODEDASFOLLOWS
IT %XTENSIONBIT
IT
SPARE
IT
ACCORDINGTOTHE4ABLE
1OCTET

202. CHANNELTYPE
./4% .OTGENERATEDBY)350
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION

203. 3UPERSEDEDBYAMORERECENTVERSION
#ODINGOF)NCOMPATIBLEPARAMETER
)NCOMPATIBLEPARAMETERISCOMPOSEDOFINCOMPATIBLEINFORMATIONELEMENTIDENTIFIER
#ODINGOF4IMERNUMBER
./4% .OTGENERATEDBY)350
4HETIMERNUMBERISCODEDIN)!CHARACTERS

204. EG4ISCODEDAS 4HEFOLLOWINGCODINGISUSEDINEACH
OCTET
IT 3PARE
IT
)!CHARACTER
#ODINGOF-ESSAGETYPE
-ESSAGETYPEISCODEDASSPECIFIEDIN4ABLE1AND4ABLE
1

205. RESPECTIVELY
#ODINGOFPARAMETERNAME
0ARAMETERNAMEISCODEDASSPECIFIEDIN4ABLE1
#AUSE$EFINITIONS
.ORMALCLASS
#AUSE.O 5NALLOCATEDUNASSIGNED NUMBER
4HIS CAUSE INDICATES THAT THE CALLED PARTY CANNOT BE REACHED BECAUSE

206. ALTHOUGH THE CALLED PARTY NUMBER IS IN A VALID
FORMAT

207. ITISNOTCURRENTLYALLOCATEDASSIGNED
#AUSE.O .OROUTETOSPECIFIEDTRANSITNETWORKNATIONALUSE
4HISCAUSEINDICATESTHATTHEEQUIPMENTSENDINGTHISCAUSEHASRECEIVEDAREQUESTTOROUTETHECALLTHROUGHAPARTICULAR
TRANSITNETWORKWHICHITDOESNOTRECOGNIZE4HEEQUIPMENTSENDINGTHISCAUSEDOESNOTRECOGNIZETHETRANSITNETWORK
EITHERBECAUSETHETRANSITNETWORKDOESNOTEXISTORBECAUSETHATPARTICULARTRANSITNETWORK

208. WHILEITDOESEXIST

209. DOESNOT
SERVETHEEQUIPMENTWHICHISSENDINGTHISCAUSE
4HISCAUSEISSUPPORTEDONANETWORK
DEPENDENTBASIS
#AUSE.O .OROUTETODESTINATION
4HISCAUSEINDICATESTHATTHECALLEDPARTYCANNOTBEREACHEDBECAUSETHENETWORKTHROUGHWHICHTHECALLHASBEENROUTED
DOESNOTSERVETHEDESTINATIONDESIRED
4HISCAUSEISSUPPORTEDONANETWORK
DEPENDENTBASIS
#AUSE.O 3ENDSPECIALINFORMATIONTONE
4HIS CAUSE INDICATES THAT THE CALLED PARTY CANNOT BE REACHED FOR REASONS THAT ARE OF A LONG TERM NATURE AND THAT THE
SPECIALINFORMATIONTONESHOULDBERETURNEDTOTHECALLINGPARTY
#AUSE.O -ISDIALLEDTRUNKPREFIXNATIONALUSE
4HISCAUSEINDICATESTHEERRONEOUSINCLUSIONOFATRUNKPREFIXINTHECALLEDPARTYNUMBER
#AUSE.O #HANNELUNACCEPTABLE
4HISCAUSEINDICATESTHATTHECHANNELMOSTRECENTLYIDENTIFIEDISNOTACCEPTABLETOTHESENDINGENTITYFORUSEINTHISCALL
#AUSE.O #ALLAWARDEDANDBEINGDELIVEREDINANESTABLISHEDCHANNEL
4HISCAUSEINDICATESTHATTHEUSERHASBEENAWARDEDTHEINCOMINGCALL

210. ANDTHATTHEINCOMINGCALLISBEINGCONNECTEDTOA
CHANNELALREADYESTABLISHEDTOTHATUSERFORSIMILARCALLSEGPACKET
MODE8VIRTUALCALLS
#AUSE.O 0REEMPTION
4HISCAUSEINDICATESTHATTHECALLISBEINGPREEMPTED
#AUSE.O 0REEMPTION
CIRCUITRESERVEDFORREUSE
4HISCAUSEINDICATESTHATTHECALLISBEINGPREEMPTEDANDTHECIRCUITISRESERVEDFORREUSEBYTHEPREEMPTINGEXCHANGE
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION

211. 3UPERSEDEDBYAMORERECENTVERSION
#AUSE.O .ORMALCALLCLEARING
4HISCAUSEINDICATESTHATTHECALLISBEINGCLEAREDBECAUSEONEOFTHEUSERSINVOLVEDINTHECALLHASREQUESTEDTHATTHECALL
BECLEARED
5NDERNORMALSITUATIONS

212. THESOURCEOFTHISCAUSEISNOTTHENETWORK
#AUSE.O 5SERBUSY
4HISCAUSEISUSEDTOINDICATETHATTHECALLEDPARTYISUNABLETOACCEPTANOTHERCALLBECAUSETHEUSERBUSYCONDITIONHAS
BEEN ENCOUNTERED 4HIS CAUSE VALUE MAY BE GENERATED BY THE CALLED USER OR BY THE NETWORK )N THE CASE OF USER
DETERMINEUSERBUSY

213. ITISNOTEDTHATTHEUSEREQUIPMENTISCOMPATIBLEWITHTHECALL
#AUSE.O .OUSERRESPONDING
4HIS CAUSE IS USED WHEN A CALLED PARTY DOES NOT RESPOND TO A CALL ESTABLISHMENT MESSAGE WITH EITHER AN ALERTING OR
CONNECTINDICATIONWITHINTHEPRESCRIBEDPERIODOFTIMEALLOCATED
#AUSE.O .OANSWERFROMUSERUSERALERTED
4HIS CAUSE IS USED WHEN THE CALLED PARTY HAS BEEN ALERTED BUT DOES NOT RESPOND WITH A CONNECT INDICATION WITHIN A
PRESCRIBEDPERIODOFTIME
./4% 4HISCAUSEISNOTNECESSARILYGENERATEDBY1PROCEDURESBUTMAYBEGENERATEDBYINTERNALNETWORKTIMERS
#AUSE.O 3UBSCRIBERABSENT
4HISCAUSEVALUEISUSEDWHENAMOBILESTATIONHASLOGGEDOFF

214. RADIOCONTACTISNOTOBTAINEDWITHAMOBILESTATIONORIFA
PERSONALTELECOMMUNICATIONUSERISTEMPORARILYNOTADDRESSABLEATANYUSER
NETWORKINTERFACE
#AUSE.O #ALLREJECTED
4HIS CAUSE INDICATES THAT THE EQUIPMENT SENDING THIS CAUSE DOES NOT WISH TO ACCEPT THIS CALL

215. ALTHOUGH IT COULD HAVE
ACCEPTEDTHECALLBECAUSETHEEQUIPMENTSENDINGTHISCAUSEISNEITHERBUSYNORINCOMPATIBLE
4HISCAUSEMAYALSOBEGENERATEDBYTHENETWORK

216. INDICATINGTHATTHECALLWASCLEAREDDUETOASUPPLEMENTARYSERVICE
CONSTRAINT 4HE DIAGNOSTIC FIELD MAY CONTAIN ADDITIONAL INFORMATION ABOUT THE SUPPLEMENTARY SERVICE AND REASON FOR
REJECTION
#AUSE.O .UMBERCHANGED
4HIS CAUSE IS RETURNED TO A CALLING PARTY WHEN THE CALLED PARTY NUMBER INDICATED BY THE CALLING PARTY IS NO LONGER
ASSIGNED4HENEWCALLEDPARTYNUMBERMAYOPTIONALLYBEINCLUDEDINTHEDIAGNOSTICFIELD)FANETWORKDOESNOTSUPPORT
THISCAUSEVALUE

217. CAUSE.O

218. UNALLOCATEDUNASSIGNED NUMBERSHALLBEUSED
#AUSE.O .ON
SELECTEDUSERCLEARING
4HISCAUSEINDICATESTHATTHEUSERHASNOTBEENAWARDEDTHEINCOMINGCALL
#AUSE.O $ESTINATIONOUTOFORDER
4HISCAUSEINDICATESTHATTHEDESTINATIONINDICATEDBYTHEUSERCANNOTBEREACHEDBECAUSETHEINTERFACETOTHEDESTINATION
ISNOTFUNCTIONINGCORRECTLY4HETERM NOTFUNCTIONINGCORRECTLY INDICATESTHATASIGNALLINGMESSAGEWASUNABLETOBE
DELIVERED TO THE REMOTE PARTY EG A PHYSICAL LAYER OR DATA LINK LAYER FAILURE AT THE REMOTE PARTY

219. OR USER EQUIPMENT
OFF
LINE
#AUSE.O )NVALIDNUMBERFORMATADDRESSINCOMPLETE
4HISCAUSEINDICATESTHATTHECALLEDPARTYCANNOTBEREACHEDBECAUSETHECALLEDPARTYNUMBERISNOTINAVALIDFORMATOR
ISNOTCOMPLETE
./4% 4HISCONDITIONMAYBEDETERMINED
IMMEDIATELYAFTERRECEPTIONOFAN34SIGNALOR
ONTIME
OUTAFTERTHELASTRECEIVEDDIGIT
#AUSE.O ACILITYREJECTED
4HISCAUSEISRETURNEDWHENASUPPLEMENTARYSERVICEREQUESTEDBYTHEUSERCANNOTBEPROVIDEDBYTHENETWORK
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION

220. 3UPERSEDEDBYAMORERECENTVERSION
#AUSE.O 2ESPONSETO34!453%.15)29
4HISCAUSEISINCLUDEDIN THE34!453MESSAGEWHENTHEREASONFOR GENERATING THE34!453MESSAGEWASTHE PRIOR
RECEIPTOFA34!453%.15)29MESSAGE
#AUSE.O .ORMAL

221. UNSPECIFIED
4HISCAUSEISUSEDTOREPORTANORMALEVENTONLYWHENNOOTHERCAUSEINTHENORMALCLASSAPPLIES
2ESOURCEUNAVAILABLECLASS
#AUSE.O .OCIRCUITCHANNELAVAILABLE
4HISCAUSEINDICATESTHATTHEREISNOAPPROPRIATECIRCUITCHANNELPRESENTLYAVAILABLETOHANDLETHECALL
#AUSE.O .ETWORKOUTOFORDER
4HISCAUSEINDICATESTHATTHENETWORKISNOTFUNCTIONINGCORRECTLYANDTHATTHECONDITIONISLIKELYTOLASTARELATIVELYLONG
PERIODOFTIMEEGIMMEDIATELYRE
ATTEMPTINGTHECALLISNOTLIKELYTOBESUCCESSFUL
#AUSE.O 0ERMANENTFRAMEMODECONNECTIONOUT
OF
SERVICE
4HIS CAUSE IS INCLUDED IN A34!453MESSAGE TO INDICATE THAT A PERMANENTLY ESTABLISHED FRAME MODE CONNECTION IS
OUT
OF
SERVICEEGDUETOEQUIPMENTORSECTIONFAILURE SEE!NNEX!1
#AUSE.O 0ERMANENTFRAMEMODECONNECTIONOPERATIONAL
4HIS CAUSE IS INCLUDED IN A34!453MESSAGE TO INDICATE THAT A PERMANENTLY ESTABLISHED FRAME MODE CONNECTION IS
OPERATIONALANDCAPABLEOFCARRYINGUSERINFORMATIONSEE!NNEX!1
#AUSE.O 4EMPORARYFAILURE
4HISCAUSEINDICATESTHATTHENETWORKISNOTFUNCTIONINGCORRECTLYANDTHATTHECONDITIONISNOTLIKELYTOLASTALONGPERIOD
OFTIMEEGTHEUSERMAYWISHTOTRYANOTHERCALLATTEMPTALMOSTIMMEDIATELY
#AUSE.O 3WITCHINGEQUIPMENTCONGESTION
4HISCAUSEINDICATESTHATTHESWITCHINGEQUIPMENTGENERATINGTHISCAUSEISEXPERIENCINGAPERIODOFHIGHTRAFFIC
#AUSE.O !CCESSINFORMATIONDISCARDED
4HISCAUSEINDICATESTHATTHENETWORKCOULDNOTDELIVERACCESSINFORMATIONTOTHEREMOTEUSERASREQUESTED

222. IEUSER
TO
USERINFORMATION

223. LOWLAYERCOMPATIBILITY

224. HIGHLAYERCOMPATIBILITY

225. ORSUB
ADDRESS

226. ASINDICATEDINTHEDIAGNOSTIC
)TISNOTEDTHATTHEPARTICULARTYPEOFACCESSINFORMATIONDISCARDEDISOPTIONALLYINCLUDEDINTHEDIAGNOSTIC
#AUSE.O 2EQUESTEDCIRCUITCHANNELNOTAVAILABLE
4HISCAUSEISRETURNEDWHENTHECIRCUITORCHANNELINDICATEDBYTHEREQUESTINGENTITYCANNOTBEPROVIDEDBYTHEOTHER
SIDEOFTHEINTERFACE
#AUSE.O 0RECEDENCECALLBLOCKED
4HISCAUSEINDICATESTHATTHEREARENOPREEMPTABLECIRCUITSORTHATTHECALLEDUSERISBUSYWITHACALLOFEQUALORHIGHER
PREEMPTABLELEVEL
#AUSE.O 2ESOURCEUNAVAILABLE

227. UNSPECIFIED
4HISCAUSEISUSEDTO REPORT ARESOURCEUNAVAILABLEEVENTONLYWHENNOOTHERCAUSEIN THE RESOURCE UNAVAILABLE CLASS
APPLIES
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION

228. 3UPERSEDEDBYAMORERECENTVERSION
3ERVICEOROPTIONUNAVAILABLECLASS
#AUSE.O 1UALITYOF3ERVICENOTAVAILABLE
4HIS CAUSE IS USED TO REPORT THAT THE REQUESTED 1UALITY OF 3ERVICE

229. AS DEFINED IN 2ECOMMENDATION 8

230. CANNOT BE
PROVIDEDEGTHROUGHPUTORTRANSITDELAYCANNOTBESUPPORTED
#AUSE.O 2EQUESTEDFACILITYNOTSUBSCRIBED
4HISCAUSEINDICATESTHATTHEUSERHASREQUESTEDASUPPLEMENTARYSERVICEWHICHISIMPLEMENTEDBYTHEEQUIPMENTWHICH
GENERATEDTHISCAUSE

231. BUTTHEUSERISNOTAUTHORIZEDTOUSE
#AUSE.O /UTGOINGCALLSBARREDWITHIN#5'
4HISCAUSEINDICATESTHATALTHOUGHTHECALLINGPARTYISAMEMBEROFTHE#5'FORTHEOUTGOING#5'CALL

232. OUTGOINGCALLS
ARENOTALLOWEDFORTHISMEMBEROFTHE#5'
#AUSE.O )NCOMINGCALLSBARREDWITHIN#5'
4HISCAUSEINDICATESTHATALTHOUGHTHECALLEDPARTYISAMEMBEROFTHE#5'FORTHEINCOMING#5'CALL

233. INCOMINGCALLS
ARENOTALLOWEDTOTHISMEMBEROFTHE#5'
#AUSE.O EARERCAPABILITYNOTAUTHORIZED
4HIS CAUSE INDICATES THAT THE USER HAS REQUESTED A BEARER CAPABILITY WHICH IS IMPLEMENTED BY THE EQUIPMENT WHICH
GENERATEDTHISCAUSEBUTTHEUSERISNOTAUTHORIZEDTOUSE
#AUSE.O EARERCAPABILITYNOTPRESENTLYAVAILABLE
4HIS CAUSE INDICATES THAT THE USER HAS REQUESTED A BEARER CAPABILITY WHICH IS IMPLEMENTED BY THE EQUIPMENT WHICH
GENERATEDTHISCAUSEBUTWHICHISNOTAVAILABLEATTHISTIME
#AUSE.O )NCONSISTENCYINDESIGNATEDOUTGOINGACCESSINFORMATIONANDSUBSCRIBERCLASS
4HISCAUSEINDICATESTHATTHEREISANINCONSISTENCYINTHEDESIGNATEDOUTGOINGACCESSINFORMATIONANDSUBSCRIBERCLASS
#AUSE.O 3ERVICEOROPTIONNOTAVAILABLE

234. UNSPECIFIED
4HISCAUSEISUSEDTOREPORTASERVICEOROPTIONNOTAVAILABLEEVENTONLYWHENNOOTHERCAUSEINTHESERVICEOROPTIONNOT
AVAILABLECLASSAPPLIES
3ERVICEOROPTIONNOTIMPLEMENTEDCLASS
#AUSE.O EARERCAPABILITYNOTIMPLEMENTED
4HISCAUSEINDICATESTHATTHEEQUIPMENTSENDINGTHISCAUSEDOESNOTSUPPORTTHEBEARERCAPABILITYREQUESTED
#AUSE.O #HANNELTYPENOTIMPLEMENTED
4HISCAUSEINDICATESTHATTHEEQUIPMENTSENDINGTHISCAUSEDOESNOTSUPPORTTHECHANNELTYPEREQUESTED
#AUSE.O 2EQUESTEDFACILITYNOTIMPLEMENTED
4HISCAUSEINDICATESTHATTHEEQUIPMENTSENDINGTHISCAUSEDOESNOTSUPPORTTHEREQUESTEDSUPPLEMENTARYSERVICE
#AUSE.O /NLYRESTRICTEDDIGITALINFORMATIONBEARERCAPABILITYISAVAILABLENATIONALUSE
4HISCAUSEINDICATESTHATTHECALLINGPARTYHASREQUESTEDANUNRESTRICTEDBEARERSERVICEBUTTHATTHEEQUIPMENTSENDING
THISCAUSEONLYSUPPORTSTHERESTRICTEDVERSIONOFTHEREQUESTEDBEARERCAPABILITY
#AUSE.O 3ERVICEOROPTIONNOTIMPLEMENTED

235. UNSPECIFIED
4HISCAUSEISUSEDTOREPORTASERVICEOROPTIONNOTIMPLEMENTEDEVENTONLYWHENNOOTHERCAUSEINTHESERVICEOROPTION
NOTIMPLEMENTEDCLASSAPPLIES
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION

236. 3UPERSEDEDBYAMORERECENTVERSION
)NVALIDMESSAGEEGPARAMETEROUTOFRANGE CLASS
#AUSE.O )NVALIDCALLREFERENCEVALUE
4HISCAUSEINDICATESTHATTHEEQUIPMENTSENDINGTHISCAUSEHASRECEIVEDAMESSAGEWITHACALLREFERENCEWHICHISNOT
CURRENTLYINUSEONTHEUSER
NETWORKINTERFACE
#AUSE.O )DENTIFIEDCHANNELDOESNOTEXIST
4HISCAUSEINDICATESTHATTHEEQUIPMENTSENDINGTHISCAUSEHASRECEIVEDAREQUESTTOUSEACHANNELNOTACTIVATEDONTHE
INTERFACEFORACALLOREXAMPLE

237. IFAUSERHASSUBSCRIBEDTOTHOSECHANNELSONAPRIMARYRATEINTERFACENUMBEREDFROM
TOANDTHEUSEREQUIPMENTORTHENETWORKATTEMPTSTOUSECHANNELSTHROUGH

238. THISCAUSEISGENERATED
#AUSE.O !SUSPENDEDCALLEXISTS

239. BUTTHISCALLIDENTITYDOESNOT
4HISCAUSEINDICATESTHATACALLRESUMEHASBEENATTEMPTEDWITHACALLIDENTITYWHICHDIFFERSFROMTHAT INUSEFORANY
PRESENTLYSUSPENDEDCALLS
#AUSE.O #ALLIDENTITYINUSE
4HISCAUSEINDICATESTHATTHENETWORKHASRECEIVEDACALLSUSPENDEDREQUESTCONTAININGACALLIDENTITYINCLUDINGTHENULL
CALLIDENTITY WHICHISALREADYINUSEFORASUSPENDEDCALLWITHINTHEDOMAINOFINTERFACESOVERWHICHTHECALLMIGHTBE
RESUMED
#AUSE.O .OCALLSUSPENDED
4HISCAUSEINDICATESTHATTHENETWORKHASRECEIVEDACALLRESUMEREQUESTCONTAININGACALLIDENTITYINFORMATIONELEMENT
WHICHPRESENTLYDOESNOTINDICATEANYSUSPENDEDCALLWITHINTHEDOMAINOFINTERFACESOVERWHICHCALLSMAYBERESUMED
#AUSE.O #ALLHAVINGTHEREQUESTEDCALLIDENTITYHASBEENCLEARED
4HISCAUSEINDICATESTHATTHENETWORKHASRECEIVEDACALLRESUMEREQUESTCONTAININGACALLIDENTITYINFORMATIONELEMENT
INDICATINGASUSPENDEDCALLTHATHASINTHEMEANTIMEBEENCLEAREDWHILESUSPENDEDEITHERBYNETWORKTIMEOUTORBYTHE
REMOTEUSER
#AUSE.O 5SERNOTMEMBEROF#5'
4HISCAUSEINDICATESTHATTHECALLEDUSERFORTHEINCOMING#5'CALLISNOTAMEMBEROFTHESPECIFIED#5'ORTHATTHE
CALLINGUSERISANORDINARYSUBSCRIBERCALLINGA#5'SUBSCRIBER
#AUSE.O )NCOMPATIBLEDESTINATION
4HISCAUSEINDICATESTHATTHEEQUIPMENTSENDINGTHISCAUSEHASRECEIVEDAREQUESTTOESTABLISHACALLWHICHHASLOWLAYER
COMPATIBILITY

240. HIGHLAYERCOMPATIBILITY

241. OROTHERCOMPATIBILITYATTRIBUTESEGDATARATE WHICHCANNOTBEACCOMMODATED
#AUSE.O .ON
EXISTENT#5'
4HISCAUSEINDICATESTHATTHESPECIFIED#5'DOESNOTEXIST
#AUSE.O )NVALIDTRANSITNETWORKSELECTIONNATIONALUSE
4HIS CAUSE INDICATES THAT A TRANSIT NETWORK IDENTIFICATION WAS RECEIVED WHICH IS OF AN INCORRECT FORMAT AS DEFINED IN
!NNEX#1
#AUSE.O )NVALIDMESSAGE

242. UNSPECIFIED
4HISCAUSEISUSEDTOREPORTANINVALIDMESSAGEEVENTONLYWHENNOOTHERCAUSEINTHEINVALIDMESSAGECLASSAPPLIES
0ROTOCOLERROREGUNKNOWNMESSAGE CLASS
#AUSE.O -ANDATORYINFORMATIONELEMENTISMISSING
4HIS CAUSE INDICATES THAT THE EQUIPMENT SENDING THIS CAUSE HAS RECEIVED A MESSAGE WHICH IS MISSING AN INFORMATION
ELEMENTWHICHMUSTBEPRESENTINTHEMESSAGEBEFORETHATMESSAGECANBEPROCESSED
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION

243. 3UPERSEDEDBYAMORERECENTVERSION
#AUSE.O -ESSAGETYPENON
EXISTENTORNOTIMPLEMENTED
4HIS CAUSE INDICATES THAT THE EQUIPMENT SENDING THIS CAUSE HAS RECEIVED A MESSAGE WITH A MESSAGE TYPE IT DOES NOT
RECOGNIZEEITHERBECAUSETHISISAMESSAGENOTDEFINEDORDEFINEDBUTNOTIMPLEMENTEDBYTHEEQUIPMENTSENDINGTHIS
CAUSE
#AUSE.O -ESSAGENOTCOMPATIBLEWITHCALLSTATEORMESSAGETYPENON
EXISTENTORNOTIMPLEMENTED
4HIS CAUSE INDICATES THAT THE EQUIPMENT SENDING THIS CAUSE HAS RECEIVED A MESSAGE SUCH THAT THE PROCEDURES DO NOT
INDICATE THAT THIS IS A PERMISSIBLE MESSAGE TO RECEIVE WHILE IN THE CALL STATE

244. OR A 34!453 MESSAGE WAS RECEIVED
INDICATINGANINCOMPATIBLECALLSTATE
#AUSE.O )NFORMATIONELEMENTPARAMETERNON
EXISTENTORNOTIMPLEMENTED
4HIS CAUSE INDICATES THAT THE EQUIPMENT SENDING THIS CAUSE HAS RECEIVED A MESSAGE WHICH INCLUDES INFORMATION
ELEMENTS PARAMETERS NOTRECOGNIZEDBECAUSETHEINFORMATIONELEMENTIDENTIFIERS PARAMETERNAMES ARENOTDEFINED
OR ARE DEFINED BUT NOT IMPLEMENTED BY THE EQUIPMENT SENDING THE CAUSE 4HIS CAUSE INDICATES THAT THE INFORMATION
ELEMENTS PARAMETERS WEREDISCARDED(OWEVER

245. THEINFORMATIONELEMENTISNOTREQUIREDTOBEPRESENTINTHEMESSAGE
INORDERFORTHEEQUIPMENTSENDINGTHECAUSETOPROCESSTHEMESSAGE
#AUSE.O )NVALIDINFORMATIONELEMENTCONTENTS
4HIS CAUSE INDICATES THAT THE EQUIPMENT SENDING THIS CAUSE HAS RECEIVED AN INFORMATION ELEMENT WHICH IT HAS
IMPLEMENTED HOWEVER

246. ONE OR MORE FIELDS IN THE INFORMATION ELEMENT ARE CODED IN SUCH A WAY WHICH HAS NOT BEEN
IMPLEMENTEDBYTHEEQUIPMENTSENDINGTHISCAUSE
#AUSE.O -ESSAGENOTCOMPATIBLEWITHCALLSTATE
4HISCAUSEINDICATESTHATAMESSAGEHASBEENRECEIVEDWHICHISINCOMPATIBLEWITHTHECALLSTATE
#AUSE.O 2ECOVERYONTIMEREXPIRY
4HIS CAUSE INDICATES THAT A PROCEDURE HAS BEEN INITIATED BY THE EXPIRY OF A TIMER IN ASSOCIATION WITH ERROR HANDLING
PROCEDURES
#AUSE.O 0ARAMETERNON
EXISTENTORNOTIMPLEMENTED
PASSEDONNATIONALUSE
4HIS CAUSE INDICATES THAT THE EQUIPMENT SENDING THIS CAUSE HAS RECEIVED A MESSAGE WHICH INCLUDES PARAMETERS NOT
RECOGNIZEDBECAUSETHEPARAMETERSARENOTDEFINEDORAREDEFINEDBUTNOTIMPLEMENTEDBYTHEEQUIPMENTSENDINGTHE
CAUSE4HECAUSE INDICATES THAT THE PARAMETERS WEREIGNORED )N ADDITION

247. IF THEEQUIPMENTSENDING THIS CAUSE ISAN
INTERMEDIATEPOINT

248. THENTHISCAUSEINDICATESTHATTHEPARAMETERS WEREPASSEDONUNCHANGED
#AUSE.O -ESSAGEWITHUNRECOGNIZEDPARAMETERDISCARDED
4HIS CAUSE INDICATES THAT THE EQUIPMENT SENDING THIS CAUSE HAS DISCARDED A RECEIVED MESSAGE WHICH INCLUDES A
PARAMETERTHATISNOTRECOGNIZED
#AUSE.O 0ROTOCOLERROR

249. UNSPECIFIED
4HISCAUSEISUSEDTOREPORTAPROTOCOLERROREVENTONLYWHENNOOTHERCAUSEINTHEPROTOCOLERRORCLASSAPPLIES
)NTERWORKINGCLASS
#AUSE.O INTERWORKING

250. UNSPECIFIED
4HISCAUSEINDICATESTHATTHEREHASBEENINTERWORKINGWITHANETWORKWHICHDOESNOTPROVIDECAUSESFORACTIONSITTAKES
4HUS

251. THEPRECISECAUSEFORAMESSAGEWHICHISBEINGSENTCANNOTBEASCERTAINED
'ENERALRULESFORTHEHANDLINGOFTHELOCATIONFIELD
4HIS CAUSE SPECIFIES THE RULES FOR HANDLING OF THE LOCATION FIELD IN THE #AUSE AND THE 0ROGRESS INDICATOR INFORMATION
ELEMENTSPARAMETERS
IGURE SHOWSTHE REFERENCE CONFIGURATION WHICH IS USED TO IDENTIFY VARIOUS NODES WHERE THE LOCATION FILEDMAYBE
GENERATED
4ABLESHOWSTHESETTINGOFTHELOCATIONFIELDTOBEGENERATEDBYANODEINTHEREFERENCECONFIGURATIONANDTHELOCATION
FIELDINFORMATIONEXPECTEDBYUSER!INEACHCASE
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION

252. 3UPERSEDEDBYAMORERECENTVERSION
4HEHANDLINGOFTHELOCATIONFIELDSHALLBEACCORDINGTOTHEFOLLOWINGRULES
I )F THE EVENT CAUSING THE GENERATION OF THE LOCATION FIELD TAKES PLACE IN AN INTERNATIONAL EXCHANGE
IEINCOMING OR OUTGOING OR INTERNATIONAL TRANSIT EXCHANGE THE LOCATION SHALL BE SET TO )NTERNATIONAL
NETWORK
II )F THE EVENT CAUSING THE GENERATION OF THE LOCATION FIELD TAKES PLACE IN A NATIONAL TRANSIT NETWORK

253. THE
LOCATIONSHALLBESETTO4RANSITNETWORK
III )F THE EVENT CAUSING THE GENERATION OF THE LOCATION FIELD TAKES PLACE IN THE PUBLIC NETWORK SERVING THE
USER

254. THE LOCATION SHALL BE SET TO 0UBLIC NETWORK SERVING THE LOCAL USER OR 0UBLIC NETWORK SERVING THE
REMOTEUSERONTHEBASISOFNETWORKCONFIGURATION
./4% ,OCATIONS5SERAND0RIVATENETWORKSERVINGTHELOCALUSERSHALLNOTBEGENERATEDINPUBLICNETWORKS
IV )FTHEEVENTCAUSINGTHEGENERATIONOFTHELOCATIONFIELDTAKESPLACEINTHEPRIVATENETWORK

255. THELOCATION
SHALLBESETTO0RIVATENETWORKSERVINGTHELOCALUSEROR0RIVATENETWORKSERVINGTHEREMOTEUSERONTHE
BASISOFNETWORKCONFIGURATION
V )FINTERWORKINGWITHASIGNALLINGSYSTEMWHICHCANNOTCONVEYLOCATIONINFORMATIONISENCOUNTERED

256. ANDIF
AMESSAGECONTAININGALOCATIONFIELDISSENTBECAUSEOFTHERECEIPTOFINFORMATIONFROMSUCHASIGNALLING
SYSTEM

257. THELOCATIONSHALLBESETTO.ETWORKBEYONDINTERWORKINGPOINT
!SACONSEQUENCEOFTHESERULES
4HELOCATION0UBLICNETWORKSERVINGTHELOCALUSERCANBESENTOVERATRANSITNETWORKORCANBECONVERTED
TO 0UBLIC NETWORK SERVING THE REMOTE USER ACCORDING TO THE STRUCTURE OF THE NATIONAL NETWORK ANDOR
AGREEMENTSBETWEENTHENETWORKOPERATORSINVOLVEDINTHECALL)NANYCASETHELOCATION0UBLICNETWORK
SERVINGTHELOCALUSERSHALLNOTBESENTOVERTHEINTERNATIONALNETWORK
4HE LOCATION 0RIVATE NETWORK SERVING THE LOCAL USER SHALL NOT BE SENT OVER THE PUBLIC NETWORK 4HE
CONVERSION FROM 0RIVATE NETWORK SERVING THE LOCAL USER TO 0RIVATE NETWORK SERVING THE REMOTE USER

258. IF
REQUIRED

259. SHALLTAKEPLACEINTHEPRIVATENETWORKINITIALLYGENERATINGTHELOCATIONINFORMATION
)N ADDITION

260. THE NETWORK MAY OPTIONALLY CHECK

261. AND IF NECESSARY

262. CHANGE THE LOCATION WHEN IT CROSSES A NETWORK
BOUNDARY4HEDEFINITIONOFTHEBOUNDARIESBETWEENTRANSITNETWORKSANDPUBLICNETWORKSSERVINGTHELOCALREMOTEUSERS
ISDEPENDENTONNETWORKSTRUCTUREANDISSUBJECTTOAGREEMENTBETWEENNETWORKOPERATORSORTONATIONALREGULATIONS
#ALLING
5SER 0RIVATE.ETWORK
! # $ % ' (
0 / . - , + * )
4
D
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION
#ALLED
5SER
0RIVATE.ETWORK
,OCAL.ETWORK
,OCAL.ETWORK
4RANSIT.ETWORK
4RANSIT.ETWORK
)NTERNATIONAL
.ETWORK
./4% 4HEINTERFACES!

263. #
$

264. -
.AND/
0AREASSUMEDTOBE1
)'52%1
2EFERENCECONFIGURATIONFORLOCATIONFIELDGENERATION

265. 3UPERSEDEDBYAMORERECENTVERSION
(ANDLINGOFCAUSEANDLOCATIONATTHEINTERNATIONALINTERFACE
4HIS CLAUSE CONTAINS CLARIFICATION OF THE USAGE OF CAUSE VALUES AND THE HANDLING OF LOCATION INDICATORS ON THE
INTERNATIONALINTERFACE
A 5SAGEOFCAUSES
3ETTING#AUSEVALUESAND

266. ANDUSINGLOCATION PUBLICORPRIVATENETWORKSERVINGTHEREMOTEUSER
ORANYOTHERCAUSEWITHLOCATION USERORPRIVATENETWORKSERVINGTHEREMOTEUSER SHOULDIMPLYTHATTHE
CALLHASREACHEDTHECALLEDPARTY

267. IEEND
TO
ENDFIELDSHAVEBEENTRANSMITTED
.ATIONALNETWORKSSHOULDMAKESURE

268. TO AVOID PUBLICNETWORKMISUSE

269. THAT THE FOLLOWING LOCATIONS ARE
NOTGENERATEDONTHEACCESS
0UBLIC
)NTERNATIONAL
4RANSITNETWORK
EYONDANINTERWORKINGPOINT
4HECAUSEVALUESENTISTHEONEOFTHELATESTOCCURREDEVENTEGRETRANSMITTINGOFTHERELEASEMESSAGE
B (ANDLINGOFLOCATIONINDICATORS
)F THE EVENT CAUSING THE SENDING OF THE CAUSE INDICATORS PARAMETER TAKES PLACE IN THE INTERNATIONAL
EXCHANGE IE INCOMING

270. OUTGOING OR INTERMEDIATE INTERNATIONAL EXCHANGE

271. THE LOCATION WILL BE SET TO
)NTERNATIONALNETWORK
)F INTERWORKING IS ENCOUNTERED IN THE INTERNATIONAL EXCHANGE AND IF A MESSAGE CONTAINING THE CAUSE
INDICATORS PARAMETER IS SENT BECAUSE OF THE RECEIPT OF A MESSAGE OF THE OTHER SIGNALLING SYSTEM

272. THE
LOCATIONWILLBESETTO EYONDANINTERWORKINGPOINT )
4HELOCATION PUBLICNETWORKSERVINGTHELOCALUSER OR PRIVATENETWORKSERVINGTHELOCALUSER SHOULD
NOTBESENTONTHEINTERNATIONALSECTION4HECONVERSIONFROM PUBLICNETWORKSERVINGTHELOCALUSER TO
PUBLIC NETWORK SERVING THE REMOTE USER OR PRIVATE NETWORK SERVING THE LOCAL USER TO PRIVATE
NETWORKSERVINGTHEREMOTEUSER SHALLTAKEPLACEINTHENATIONALNETWORKGENERATINGTHECAUSE
)NALLOTHERCASESTHEINTERNATIONALEXCHANGEWILLPASSONTHERECEIVEDLOCATION
5SINGTHISSOLUTION

273. ITISIMPOSSIBLETODISTINGUISHANATIONALLOCATION TRANSITNETWORK FROMALOCATION
TRANSITNETWORKBEYONDTHEINTERNATIONALBOUNDARY
4HEREALLOCATIONWHERETHEEVENTWASGENERATEDISLOSTWHENINTERWORKINGFOREXAMPLE#'#AND..#IN4ELEPHONE
5SER0ARTARECODED

274. ) )NSPITEOFTHAT

275. THELIMITATIONSOFTHISSOLUTIONAREACCEPTED

276. BECAUSETHEYARECONSIDEREDAS
ACCEPTABLEFORTHIS)3$.5SER0ARTVERSION
2ECOMMENDATION1 3UPERSEDEDBYAMORERECENTVERSION