Consecutive Speed Calling-System
...ay-Attendant) 呼叫转移-忙线-外线 (Call Forwarding-Busy-Outside) 后续缩位呼叫-系统(Consecutive Speed Calling-System) 停放忙线(Camp-on Busy) 无条件呼叫转移-通告 (Call Forwarding-All Calls-Announcement ) 回叫-延迟(Call Back-Delayed)...
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后续缩位呼叫-系统
Consecutive Speed Calling-System