Did i already mention that i miss the sound of 56k modems, but i still dream about them sometimes?
That sounds fun to use as a ringtone.
I only wait until i have some spare time to make this brilliant idea real

Thanks.
No need to, it's all there:
Real 56k Dialup Modem Sound->
https://archive.org/details/real-56k-dialup-modem-soundALL Old Modem Sounds (300 baud to 56K)->
https://www.youtube.com/watch?v=ckc6XSSh52w^ Audio can easily be extracted with ffmpeg once downloaded as mp4 with
yt-dlp:
yt-dlp -f 234 https://www.youtube.com/watch?v=ckc6XSSh52w
ffmpeg -i ALL\ Old\ Modem\ Sounds\ \(300\ baud\ to\ 56K\)\ \[ckc6XSSh52w\].mp4 ALL\ Old\ Modem\ Sounds\ \(300\ baud\ to\ 56K\)\ \[ckc6XSSh52w\].mp3
#or with better quality:
ffmpeg -i ALL\ Old\ Modem\ Sounds\ \(300\ baud\ to\ 56K\)\ \[ckc6XSSh52w\].mp4 -vn -ar 44100 -ac 2 -ab 192k -f mp3 ALL\ Old\ Modem\ Sounds\ \(300\ baud\ to\ 56K\)\ \[ckc6XSSh52w\].mp3