Mumble
Open Source
Mumble is an open source, low-latency, high quality voice chat software primarily intended for use while gaming.
Discord
Free
Discord is a freeware proprietary VoIP application designed for gaming communities.
Ventrilo
Free
Ventrilo (Vent) is a VoIP software that includes text chat.
Curse
Free
Curse is an online game portal and network of gaming websites.
Viber
Freemium
Viber Free Messenger and Phone Calls.
Ring
Open Source
Ring (SFLphone) is an open-source SIP-compatible softphone and instant messenger for Linux, Microsoft Windows, OS X and Android.
C3
Free
C3 makes it easy to generate D3-based charts by wrapping the code required to construct the entire chart.
Dialog Messenger
Free Personal
Dialog Messenger is a handy and feature-rich enterprise multi-device messenger available for server or cloud.
Compare TeamSpeak with alternatives
Compare Dialog Messenger and TeamSpeak and decide which is most suitable for you.