Bluetooth, how to turn off incoming call notification?

Question

Bluetooth

Available: smartphone, headphones with microphone, PC with bluetooth.
I installed the driver from the CD that came with bluetooth, namely CSR Harmony Wireless Software Stack Version 2.1.63.0. Now I have the opportunity to use the PC as a headset for my smartphone.
Minus the driver - you can't see who is calling, just a number - you can guess whose.
I installed the program Remote Phone Call 5.5, the program shows all the necessary information, even more than necessary. There is a history of calls, there is a phone book, it is possible to send SMS.
But there is one minus, with an incoming / outgoing call, a window of the driver itself appears with the ability to end the call and the phone number (numbers). I would like to use only the Remote Phone Call program and not see the window that belongs to the CSR driver.
How can I disable the appearance of this window? I didn't find it in the settings. I tried other drivers, some do not start, some do not support A2DP / hands-free profile.
In general, I found the only working option, but the window that appears when the driver itself makes an incoming / outgoing call interferes.
PS: the window of the Remote Phone Call program appears much faster than the driver window: D But it appears and interferes.