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: Desmos is an online graphing calculator that allows users to plot mathematical functions, equations, inequalities, parametric equations, polar equations, scatter plots, and regression lines. It has an intuitive, easy-to-use interface and supports mathematical expressions formatted in standard and LaTeX notation.
Type: software