Google Voice Alternatives

TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.

RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies

Open Source freemium $19.99 / Monthly (All-in-One Phone, Team Messaging, and Video Conferencing.)

Employee Monitoring Software with Screenshots, Internet, Activity and Time Tracking

Try for free freemium $4.99 / Monthly

Stay in touch with your family and friends for free on Skype. Download Skype today to chat and call on desktop and mobile.

Grasshopper enables entrepreneurs to build a virtual office that connects callers to employees, wherever they are.

WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.

free

Aircall is a call center software of a new generation designed for fast growing companies. Setup instantly and integrates to your CRMs

Switch is a cloud-based phone system built for Google Apps users.

Line2 adds a second phone number or complete cloud business phone system to smartphones & computers that's robust yet affordable. Buy online or get a custom quote.

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.

Business Communications and Collaboration

VOIP Business Phone Service + Virtual PBX

TextMe is a free calls and messaging application at both local and international levels.

Sideline™ is the free 2nd number for your smartphone. It uses your existing carrier network so your 2nd number works anywhere your cell phone does.