Description: Asterisk is an open source communications software that allows you to build telephony applications and services. It supports voice over IP, video conferencing, voicemail, auto attendant, interactive voice response, and more. It can be used to build PBX systems, call center solutions, and other communications platforms.
Type: software
Pricing: Open Source
Description: WeChat is a popular Chinese multi-purpose messaging, social media and mobile payment app. It was developed by Tencent and launched in 2011. WeChat allows users to send text, voice, photo and video messages for free to individuals and groups.
Type: software
Pricing: Free