Hi there, if using Windows you can create calls using the game editor.
See Steam Guide: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=946546777
Also YouTube: https://www.youtube.com/watch?v=BJcuf4-7hhw&t
And Google Docs: https://docs.google.com/spreadsheets/d/1ZaEMYbUrpSixhk4x2_YB8cxTexlWzss1HUTWsLLdjQc
The Google Sheet simply lists all the available properties to enter in the more advanced boxes in the game editor.

If you're on Mac, I'm afraid you'll have to do it the more manual way.
See Steam Guide: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=936535634
YouTube: https://www.youtube.com/watch?v=XrUFGXNgaHc&t
And the same Google Sheet as above.

To add translations, Steam Guide: https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=936096502
YouTube: https://www.youtube.com/watch?v=Zh0B2EyEa3o&t

And to add audio (voiceovers and background audio are possible), YouTube: https://www.youtube.com/watch?v=kcYhSAC3O8M&t

When creating a call, it's best to use a call ID that nobody else has used yet; to see all existing IDs, search on this page: https://soharicmedia.com/911/listing - It doesn't matter if you use an existing ID, but it does mean that the two mods will not work if installed together.

I hope these resources help you. Let me know if anything is unclear. :)

If you'd like to view examples (or contribute?!) to an existing project, see "On the Line" on GitHub: https://github.com/soharicmedia/otl

Thank you! you should pin this so others can see!

Originally posted by RichManSCTV0™:

Thank you! you should pin this so others can see!

The moderators might see this post, but the decision would be up to them. :)
I keep meaning to make a page on my site giving all these resources. I'll endeavour to update here with the link when I do this.