同义词
1)Completion of Call to Busy Subscriber CCBS,遇忙呼叫完成2)completion of call to busy subscriber,遇忙呼叫完成目标3)completion of calls to busy subscribers (CCBS),完成到示忙用户呼叫4)busy call transfer,call forward-busy,呼叫遇忙转移5)Registered call,遇忙寄存呼叫6)Registered Call,遇忙记存呼叫
