Content for TS 24.628 Word version: 18.0.0
4 Common basic communication procedures
4.1 Introduction
4.2 Announcement
4.3 Alternative ring tone
4.3A Voicemail server identification
4.4 Network Determined User Busy (NDUB)
4.4a Special REFER request handling procedures
4.4b Screening of 200 (OPTIONS) response content
4.5 Operational requirements
4.6 Coding requirements
4.7 Signalling procedures
4.8 Interactions with other networks
4.9 Signalling flows
4.10 Parameter values (timers)
4 Common basic communication procedures p. 8
4.1 Introduction p. 8
4.2 Announcement p. 8
4.2.1 General p. 8
4.2.2 Providing announcements to a user during the establishment of a communication session p. 8
4.2.3 Providing announcements to a user during an established communication session p. 9
4.2.4 Communication request rejected p. 9
4.2.5 Providing announcements to a user during the release of a communication session p. 9
4.2.6 Providing announcements to a terminating user just after the call is answered and before establishing direct communication session between end users |R10| p. 9
4.3 Alternative ring tone p. 10
4.3A Voicemail server identification |R9| p. 10
4.4 Network Determined User Busy (NDUB) p. 10
4.4a Special REFER request handling procedures p. 10
4.4b Screening of 200 (OPTIONS) response content |R12| p. 11
4.5 Operational requirements p. 11
4.5.1 Provision/withdrawn p. 11
4.5.2 Requirements on the originating network side p. 11
4.5.3 Requirements on the terminating network side p. 12
4.6 Coding requirements p. 12
4.7 Signalling procedures p. 12
4.7.1 Activation, deactivation p. 12
4.7.1A Registration/erasure p. 12
4.7.1B Interrogation p. 12
4.7.2 Invocation and operation p. 12
4.7.2.1 Actions at the originating UE p. 12
4.7.2.2 Void
4.7.2.3 Void
4.7.2.4 Void
4.7.2.5 Void
4.7.2.6 Void
4.7.2.7 Void
4.7.2.8 Void
4.7.2.9 Actions at the AS p. 14
4.7.2.9.0 General |R16| p. 14
4.7.2.9.1 Providing announcements during an established communication session p. 14
4.7.2.9.2 Providing announcements during the establishment of a communication session p. 14
4.7.2.9.3 Providing announcements when communication request is rejected p. 14
4.7.2.9.4 Providing alternative ring tone during the establishment of a communication session p. 15
4.7.2.9.5 Early dialog procedures at the AS p. 15
4.7.2.9.6 Providing announcements during the release of a communication session p. 15
4.7.2.9.7 Starting special REFER handling procedures at the AS of the initiator of the REFER request p. 15
4.7.2.9.8 Voicemail server |R9| p. 17
4.7.2.9.9 Providing announcements to a terminating user just after the call is answered and before establishing direct communication session between end users |R10| p. 17
4.7.2.9.10 Screening of 200 (OPTIONS) response content |R12| p. 18
4.7.2.10 Action at the terminating UE p. 18
4.8 Interactions with other networks p. 19
4.9 Signalling flows p. 19
4.10 Parameter values (timers) p. 19
