We called this “beep”ing in Romania. Apparently it was widespread across developing contries [1] [1] https://academic.oup.com/jcmc/article-pdf/13/1/1/22316427/

We called this “beep”ing in Romania. Apparently it was widespread across developing contries [1] [1] https://academic.oup.com/jcmc/article-pdf/13/1/1/22316427/jjcmcom0001.pdf https://academic.oup.com/jcmc/article-pdf/13/1/1/22316427/jj...