Calls
Make and receive PSTN phone calls
Calls is a simple, elegant phone dialer and call handler for GNOME. It can be used with a cellular modem for plain old telephone calls as well as VoIP calls using the SIP protocol.
A GTK+ user interface for PSTN phone calls using ModemManager. . Besides phone calls it also handles USSD. . It works on desktops but also adjusts to small screen sizes like smart phones and other mobile devices.
How to install Calls in Ubuntu
If you are on a supported distro, you can install the application through software center by clicking the below link.
If the above link not working, run the below command in terminal to install gnome-calls in Ubuntu
sudo apt install gnome-calls
Calls Screenshots
