if your using skype on linux, you can get around the ringtone thing by creating a blank ringtone with (for example) audacity.
name that ringtone “CallRingingIn.wav” and save it in a folder called "skype_new_ringtones"
cd to /home/user/usr/share/skype/sounds/
[code] mv CallRingingIn.wav CallRingingIn.wav.old
copy the new file to the skype sounds folder
[code] cp skype_new_ringtones/CallRinging.wav .
and thats it.
repeat for each file you want changed in the /home/user/usr/share/skype/sounds/ folder, changing the filenames as needed.
this will need repeated after each skype update, thus the need for the skype_new_ringtones folder.
this doesnt work on windows, as $micro$oft has buried the .wav files into .dll files, perhaps to keep users from changing them.
as mentioned before in another post, it appears that $micro$oft is pushing people who might actually use skype for podcasting or commercial radio into the paid pro version. while dumbing down the computer version to the mobile version.
there are other means of getting around this by using discord and other programs , notably telegram.
note: the bbcode tags [code] [ /code] do not work . space intentional so the tags actually show up. otherwise a blank line will appear even if i include something in between them.