VoLTE终端通过ut接口设置遇忙呼转,发送的rule-id为()

VoLTE终端通过ut接口设置遇忙呼转,发送的rule-id为()

A.call-diversion-busy

B.call-forwarding-busy

C.call-diversion-no-reply

D.call-diversion-not-reachable

正确答案是B