Table of Contents
1Definition
2Description
2.1Generaldescription
2.2Specificterminology
2.3Qualificationoftheapplicabilityto
telecommunicationservices
3Procedures
3.1Provision/withdrawal
3.2Normalprocedures
3.3Exceptionalprocedures
3.4Alternativeprocedures
4Networkcapabilitiesforcharging
5Interworkingrequirements
6Interactionwithothersupplementaryservices
6.1AdviceofChargeservices
6.2CallHold(HOLD)
6.3Calltransferservices
6.4CallWaiting(CW)
6.5ClosedUserGroup(CUG)
6.6Completionofcallsservices
6.7Conferenceservices
6.8Diversionservices
6.9Direct-Dialling-In(DDI)
6.10In-call-Modification(IM)
6.11ISDNfreephoneService(IFS)
6.12LineHunting(LH)
6.13MaliciousCallIdentification(MCID)
6.14Multi-LevelPrecedenceandPreemption(MLPP)
6.15MultipleSubscriberNumber(MSN)
6.16Nameidentificationservices
6.17Numberidentificationservices
6.18OutgoingCallBarring(OCB)
6.19ReverseCharging(REV)
6.20Sub-addressing(SUB)
6.21SupportofPrivateNumberingPlans(SPNP)
6.22TerminalPortability(TP)
6.23User-to-Usersignalling
7Dynamicdescription
AnnexA-InteractionbetweenUser-to-UserSignallingand
calldiversionservices Abstract
The user-to-user (UUS) supplementary service allows an ISDN user to send/receive a limited amount of information to/from another ISDN user over the signalling channel in association with a call to the other ISDN user.
