Install ekiga by entering the following commands in the terminal:
sudo apt update sudo apt install ekiga
H.323 and SIP compatible VoIP client
H.323 and SIP compatible videoconferencing and VoIP/IP-Telephony application that allows you to make audio and video calls to remote users with H.323 hardware or software (such as Microsoft Netmeeting) as well as SIP endpoints. . It supports all modern videoconferencing features, such as contact roster, presence status, high-quality audio and video codecs, various video resolutions, registering to an LDAP directory, gatekeeper support, making multi-user conference calls using an external MCU, using modern Quicknet telephony cards, and making PC-To-Phone calls. . Evolution plugin is in ekiga-plugin-evolution package.