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: FaceTime is a video calling app developed by Apple. It allows users to make video calls between Apple devices like iPhones, iPads and Macs over WiFi or cellular networks.
Type: software