How Can I Port an Existing Phone Number to United World Telecom?

You can easily port an existing business toll free or local phone number to United World Telecom.
Review this pdf.

HOW TO PORT / TRANSFER MY NUMBER
Go to www.globalcallforwarding.com/prices/

1. Select the country of the number to be ported
2. Select the number type (toll free, mobile)
3. Select the prefix (800, 866 etc.)
4. Select Port/Transfer My Number
5. Enter the phone number you would like incoming
   calls to be forwarded to.
6. Send an invoice from your current carrier
   to changes@unitedworldtelecom.com
7. Wait for the transfer
8. Cancel service with your previous provider