8.3.4 Subsequent Inter-MSC GSM to UMTS Handover to a third MSC
23.2053GPPBearer-independent circuit-switched core networkRelease 17Stage 2TS
The GSM to UMTS handover to a third MSC server (from MSC-B server to MSC‑B server) is the combination of the two previous inter-MSC handover cases:
– for MSC-B server a subsequent GSM to UMTS handover from MSC-B server back to MSC-A server as described in clause 8.3.3; and
– for MSC-B server a basic GSM to UMTS handover from MSC-A server to MSC‑B server as described in clause 8.3.2.
MSC-A server implements the corresponding parts of each handover case; i.e. access handling in MSC-A server is not included.