Access BTS -- Tells us the first BTS assigned for a call.Same as Init RF Connect BTS, except it is set to ZERO if the CDL is for a Hard Hand-in call.

• 接入BTS－表明为一个呼叫指派的第一个BTS，初始无线信号连接BTS也一样，除非当CDL是一个硬切换记录的时候，该字段被设为0。