How to Change the status voice msg of Bluetooth module
I bought a new Bluetooth IC

No you didn't, you bought a Bluetooth Audio module. The ICs are the 2 black components on the module.

Can the voice be changed?

Yes if you were the company making the IC which contains the voice or you have all needed information including source code of the data in that IC so that you can recompile the data and flash it into the IC.

But you probably do not have access to all this so then the answer is No, you cannot change the voice. It's a cheap Chinese module, what did you expect ?