Click to call Zadarma
exhausts RAM
Great on Windows, but does not load on Linux.
It kept loading can you let me know if there are any extra mile to go?
https://justcall.io
Sipuni
Zoiper
https://channels.app
Ghanshyam Katriya
https://sipout.net
https://www.amocrm.ru/
http://www.techextension.com/
http://callfrombrowser.com/
https://integrics.com
novofon
https://www.duocom.es/