Content for TR 23.903 Word version: 17.0.0
4 Description of idle mode redial switching between voice and video
5 Interaction with Supplementary Services and other 3GPP Features
6 O+M, charging and inter-operator and roaming accounting
A List of CRs needed to other TSs
$ Change history
4 Description of idle mode redial switching between voice and video p. 6
4.1 General Description p. 6
4.2 User initiated switching during an established call p. 6
4.3 Fallback to voice during an established video call p. 9
4.3.1 Signalling flows and procedures p. 9
4.3.1.1 Fallback from UTRAN Video to UTRAN Voice call p. 9
4.3.1.2 Fallback from UTRAN Video to GERAN Voice call p. 10
4.3.2 Future enhancements p. 11
4.4 Fallback to voice during video call establishment p. 11
4.5 Automatic upgrade to video following fallback to voice p. 13
5 Interaction with Supplementary Services and other 3GPP Features p. 14
5.1 General p. 14
5.2 Calling Line Identity and Single Numbering Scheme p. 14
5.3 CAMEL based services triggered by call release and CCBS p. 14
5.4 Provision of Multi-Media "Ring Back" tones to the A party p. 14
6 O+M, charging and inter-operator and roaming accounting p. 15
6.1 Call Detail Records and statistics p. 15
6.2 Online charging p. 15
6.3 Tariffing p. 15
6.4 Inter-operator accounting p. 16
6.5 Roaming accounting p. 16
A List of CRs needed to other TSs p. 17
A.1 General p. 17
A.2 CRs to other specifications already agreed by TSG Plenaries p. 17
A.3 Future CRs that are needed and/or are desirable p. 17
$ Change history p. 18
