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Content for TS 23.153 Word version: 18.0.0

1… 5… 5.5… 5.7… 6… 6.4… 6.11… 7… 9… A…

6.11 Inter-MSC Handover during TrFO 6.12 Incoming data call from PSTN 6.13 Mobile to Mobile TrFO Call Establishment in GERAN AoIP mode 6.14 Handover in GERAN AoIP mode during TrFO
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6.11 Inter-MSC Handover during TrFO |R5| p. 74

6.11.1 Inter-MSC Handover p. 74

6.11.2 Codec Modification/Mid-Call Codec Negotiation after Inter-MSC Handover p. 75

6.11.2.1 Codec Modification/Mid-Call Codec Negotiation Initiated by the Far End Side p. 75

6.11.2.2 TFO Codec Mismatch Resolution in the Serving MSC p. 75

6.11.2.3 Modification Procedure after Codec Change in the Serving MSC p. 76

6.12 Incoming data call from PSTN |R7| p. 76

6.12.1 Identification of data call at Visited MSC p. 76

6.12.2 Handling at transit exchange in inhomogenous networks p. 76

6.12.3 Identification of data call at G-MSC using multi-numbering p. 77

6.13 Mobile to Mobile TrFO Call Establishment in GERAN AoIP mode |R8| p. 78

6.14 Handover in GERAN AoIP mode during TrFO |R9| p. 81

6.14.1 Inter-MSC Handover in GERAN AoIP mode p. 81

6.14.2 Codec Modification/ Mid-Call Codec Negotiation after Inter-MSC Handover p. 86

6.14.2.1 Codec Modification Initiated by the Far End Side p. 86

6.14.2.2 Mid-Call Codec Negotiation Initiated by the Far End Side p. 87

6.14.2.3 Modification Procedure after Codec Change in the Serving MSC p. 87