Voice Call Softwares and Apps

Riot.im, now known as Element, is a secure, privacy-focused collaboration platform built on the open Matrix protocol. It enables real-time communication through chat, voice, and video calls, offering end-to-end encryption and bridging capabilities to connect with users on other networks like Slack, GitHub, and more.

Pidgin is a free and open-source multi-protocol instant messaging client designed to connect users across various chat networks with a single application. It's highly extensible through plugins and supports a wide range of protocols including XMPP, ICQ, and IRC.

QuteCom, formerly WengoPhone, was a free and open-source VoIP client supporting the SIP protocol. It enabled users to make voice and video calls, send instant messages, and connect with contacts across various networks, including Google Talk.

Psi+ is a robust, cross-platform XMPP/Jabber client tailored for users who prioritize control, privacy, and extensibility. As a development branch of the classic Psi client, it offers advanced features for secure and customizable instant messaging.

QuteCom, formerly WengoPhone, was a free and open-source VoIP client supporting the SIP protocol. It enabled users to make voice and video calls, send instant messages, and connect with contacts across various networks, including Google Talk.

Psi+ is a robust, cross-platform XMPP/Jabber client tailored for users who prioritize control, privacy, and extensibility. As a development branch of the classic Psi client, it offers advanced features for secure and customizable instant messaging.

Riot.im, now known as Element, is a secure, privacy-focused collaboration platform built on the open Matrix protocol. It enables real-time communication through chat, voice, and video calls, offering end-to-end encryption and bridging capabilities to connect with users on other networks like Slack, GitHub, and more.

Pidgin is a free and open-source multi-protocol instant messaging client designed to connect users across various chat networks with a single application. It's highly extensible through plugins and supports a wide range of protocols including XMPP, ICQ, and IRC.