Five9 - Five9 provides cloud-based call center software for sales, marketing and support.
Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Avaya - Avaya is a leading communication platform that provides the complete portfolio of software and services for multi-touch contact center and unfiled communications offered on premises in the cloud or a hybrid.
TextMe - TextMe is a free calls and messaging application at both local and international levels.
Verint Workforce Optimization - Manage your workforce and drive performance so you can make better decisions, increase productivity and improve CX via staffing and performance solutions.
Talkatone - Android App on. Google Play. Stop paying for cell minutes, texts & landlines; Turn your iPad or iPod touch into a phone; Call/Text even in areas with bad cell coverage; Call/Text when travelling without paying for expensive international minutes.