You can use any kind of phone to call everywhere in the world. With your plan you can make calls by various ways: Phone card, Mobile APP or Direct Dial. We combine phone lines and Internet to provide you always with stable connection and voice quality.

Choose calling rates



Or buy Comfi products

You can change rate plan at any time

Calling cards

Mobile APP

  • Save up to 75% on international calls
  • Boston, MA based customer service

ComFi.com BBB Business Review

Customer Service

1 (617) 861-4107
(800) 219-6993 (usa)
average waiting time: 5 min

10AM - 7PM EST
8AM - 12AM EST
Use Online Form - 24/7

Customer Testimonials

"The ease and convenience of having the auto refill and speed dialing has made our lives much easier. Thanks for the excellent service you provide"

Anthony J, Bronx, NY

"I really am very happy with the Cardinal phone card. I got it for my Mom and it's easy and a great price. I've told several people about it so one of these days they will get one for themselves."

Jim R, Mokena, IL

More testimonials