呼叫修改拒绝
Call Modification Rejected CMRJ
呼叫修改请求
call modification request
忙线呼叫完成
Completion of Calls to Busy Subscriber
忙线用户呼叫完成
Completion of Calls to Busy Subscriber
遇忙呼叫完成
Completion of Call to Busy Subscriber CCBS
前导图法的完成完成关系
PDM Finish to Finish Relationship
修改完善
Modification and Improvement
revising and improvement