Switchboard - Your instant voice network
February 25, 2018 at 8:41:58 PM GMT+1 * - permalink -

- http://www.switchboardaudio.com/

Zulip
March 2, 2017 at 4:15:59 PM GMT+1 * - permalink -

- https://zulip.org/index.html

Emitter: Scalable Real-Time Communication Across Devices
November 5, 2016 at 4:42:56 PM GMT+1 * - permalink -

- https://emitter.io/