Is there any to set CCCD's default value to be 1(i.e. enabling the notification of an attribute)?

Hi, I am trying to enabling a notification of an attribute(once the attribute changed, the server will push the new value to the client) and I learned I have to first configure the CCCD correctly to do this. In the bluetooth spec it says the CCCD has to be 1 to support notification, and I have successfully added the CCCD of my attribute by setting the char_props.notify to be 1, but the default value of CCCD is 0. I am just wondering if I can make this default value to be 1 or it is up to the client to configure it?

Thanks

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