Mobiniti - Mobiniti offers a mobile marketing platform for clients to invite customers to engage with their brand through SMS via their mobile phone.

3CX - Hosted PBX with CRM integration and mobile apps

Pyze - Pyze utilizes machine learning to understand user behavior and automate user engagement so...

CallHub - Predictive Call Center, Voice and Text Broadcasting app

Textmagic - The all-in-one solution for all your business texting needs - marketing campaigns, two-way SMS chats, reminders, notifications, and internal staff communication.

Asterisk - An open source telephony switching and private branch exchange service for Linux.