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两个人通话时,其中一个人拨打一个号码(比如3),对方能收到这个号码吗?换句话说,作为开发人员,我们能否在通话过程中从一个人读取拨打的号码。如果是这样,有人会提供一小段代码吗?
I think you should look into call DTMF system. I know you can send DTMF signals while in a call. So at the other end just read/decode the DTMF.