What are some alternatives?
When comparing The Real PBX and Vonage, you can also consider the following products
RingCentral - RingCentral is the leading provider of cloud-based communications and collaboration solutions for small business and enterprise companies
TollFreeForwarding - TollFreeForwarding offers hosted PBX, call forwarding and IVR solutions.
Google Voice - Google Voice gives you one number for all your phones, voicemail organized in an email format, free...
Exotel - Exotel is a powerful, feature-rich business phone system that offers features like Smart IVR for your business.
Viber - Free and secure calls and messages to anyone, anywhere. Keep your conversations going no matter where you are.
CallHippo - CallHippo offers cloud-based virtual phone systems for SME businesses.