Telegram - Telegram is a messaging app with a focus on speed and security. It’s superfast, simple and free.
Aircall - Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs
Gitter - Where developers come to talk.
LeadMaster - The LeadMaster LeadMasterCRM All-in-One solution includes: marketing automation, lead management, email marketing, website integration & much more.
Flock - A faster way for your team to communicate
Servetel - Communication management solution