RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
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.
MightyCall - Virtual phone system that lets you run your business from anywhere.
Burner - Disposable phone numbers -- now with MMS photo support
Line2 - 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.
quackr - Protect your privacy & identity with quackr. Use our free temporary phone numbers to receive SMS online now.