Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
ChaseData Call Center Software - Affordable, powerful and easy-to-use call center software solutions for businesses looking to improve and increase performance of call centers.
WhatsApp - WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.
Five9 - Five9 provides cloud-based call center software for sales, marketing and support.
Signal - Fast, simple & secure messaging. Privacy that fits in your pocket.
PhoneBurner - PhoneBurner is a cloud-based power dialer to boost sales productivity