Ring4 - Manage business phone line as easily as you manage emails, in the cloud. Ring4 provide you with a business line and video conferencing solution.
Burner - Disposable phone numbers -- now with MMS photo support
Shuffle - One Phone, Multiple Numbers
Numero eSIM - Numero eSIM is a phone-number app that makes voice and data possible anywhere in the world, for free.
Swytch - Unlimited mobile numbers on your existing phone using the Swytch app.
Hushed App - Hushed App will allow you to receive a Secondary Phone Number for Private, Long-Distance...