I've always enjoyed working with vintage radio equipment, including things like group call tones.
Later, while playing some FPS games, I also wanted to add this type of "sound effect" to the voice communication, so I created this software that uses a virtual sound card to input audio: RogerThat.
Official website: https://rt.yzyyz.top
It's not very powerful; it's just a toy for fun, but there are also some people using it, so it has some practical value.

The envisioned scenario during creation: The user can customize the buttons. When the user releases the voice button after speaking, the software retains the button and sends audio to a virtual sound card to achieve the signaling effect at the end of the call. Additionally, the user can customize the front/rear orientation.
Alternatively, this software can also be used as a music player for games (further development will focus on dedicated features in this area).
Currently, the front-end testing hasn't revealed any issues. It can be used normally in CS2 after being set up. I haven't tested other applications, but at least pressing the spacebar on QQNT doesn't work to send voice messages.