Phone.com has introduced its Virtual Number service, allowing customers to – a la Google Voice – choose one primary phone number that acts as a gateway to any/all of the phone numbers the customer may already use. There are also some freebies if you refer other customers to the service.

Unlike GV, a Phone.com customer can transfer an existing number to act as a Virtual Number or assign a new number. Customers can also upload their address book from most major email programs to program call routing information based on caller ID, as well as for use during click-to-call, call blocking and other tasks.

In addition customers are able to upload their address book from most major email programs; the contact information can be used to program call routing based on caller ID, and during click-to-call, call blocking, and additional tasks that can be assigned as needed.

Plans start at $4.88 per month, and customers get a price drop of $1 per referral until they get the service for free; additional referrals result in monthly credits usable for extra minutes and more features.