Are there any development ideas or related service providers for call transfer?

currently receives a request for a virtual call. The details are

.

An and B talk, but the middle number C is displayed on the mobile phone screen through the intermediate numbers CMagia An and B.

is to establish a binding relationship between number An and number B and intermediate number C through the code, and then number A dials the intermediate number C Magi An and B to make a call, and the incoming call shown by B is also the intermediate number C.

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