JavaScript - Lightweight, interpreted, object-oriented language with first-class functions
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
Dialpad - Switch is a cloud-based phone system built for Google Apps users.
PHP - A popular general-purpose scripting language that is especially suited to web development
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs