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A.SEAMLESS VOICE HANDOVER
B.CIRCUIT SWITCHED SERVICES VIA UU
C.COMMON A-BIT INTERFACE
D.4D SCALABILITY
单项选择题
A.billing&charging
B.All technology
C.multi vendor
单项选择题
A. CSFB to WCDMA via redirect
B. CSFB to GSM via redirect
C. PSHO of CSFB
单项选择题
A.Actll
B.Connect
C.Asset
D.Planet