letsBrik - A Skype Alternative that is entirely web browser based.
Fuse - Fuse is a UX tool suite for mobile app designers and developers.
Amivox - Would you like to make international calls either free or at local rates ?
GoodBarber - GoodBarber is a mobile app creation platform.
BNESIM - The all-in-one app for your communications. Voice, SMS, rooms, data SIM & eSIM in 200+ countries without roaming fees. Double data on the first top-up. Two years back-to-back winner of the "World Travel awards" for 2019 and 2020.
Dropsource - Mobile development platform for building native iOS & Android apps