Dingtone
Dingtone is a free call and texting application for making unlimited calls and text messages to any number at the moment registered in any part of the world by any cellular company.
19 Alternatives To Dingtone
Google Voice
Google Voice gives you one number for all your phones, voicemail organized in an email format, free…
Ring4
Get a smart phone number in 8 countries. Manage business phone line as easily as you manage emails, in the cloud.
Sideline
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.
TextNow
TextNow is a mobile virtual network operator (MVNO) that provides a free phone service to users by using other cellular networks coverage.
Trello
Infinitely flexible. Incredibly easy to use. Great mobile apps. It’s free. Trello keeps track of everything, from the big picture to the minute details.
Viber
Free and secure calls and messages to anyone, anywhere. Keep your conversations going no matter where you are.
WhatsApp
WhatsApp Messenger: More than 1 billion people in over 180 countries use WhatsApp to stay in touch with friends and family, anytime and anywhere.