Callmama - Get cheap international calling, international virtual number, Call Mama Gives an added advantage to send message and make calls to non-user of Callmama App.
CallHippo - Easy to use Phone System with World-Class Support
Global Call Forwarding - Global Call Forwarding offers local and international toll free numbers which can be forwarded to any phone, anywhere in the world.
KrispCall - Virtual cloud phone system for business
TollFreeForwarding - TollFreeForwarding offers hosted PBX, call forwarding and IVR solutions.
OpenPhone - Simplest way to own a business phone number