Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Windstream Holdings - Windstream Holdings is a scalable cloud-based business phone solution that provides complete and unified communication applications to businesses of all sizes.
TextMe - TextMe is a free calls and messaging application at both local and international levels.
BVoIP - BVoIP allows to easily add Cloud & On-Premise VoIP PBX to the product offering without having to re-invent the wheel or add another layer to the daily operations..
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.
Loop Communications - Loop Communications provides hosted VoIP business phone systems to small businesses and mid-sized companies.