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 to Mongolia - CELL



Or select Calling cards / Mobile APP

and choose Stream or Standard plan at any time

Cheapest rates to Mongolia - CELL

Mobile APP

Standard plan
Mobiles 1.7 ¢/min

Why should I buy a phone card online?

Phone cards online offer domestic and international rates that are usually much lower than rates offered by residential phone service providers and prepaid phone cards sold in stores.

Looking to buy international calling cards for calling abroad from USA to Mongolia - CELL? Comfi provides the best international calling cards that will make your connection with friends, relatives or colleagues cost-effective and impeccable.

We provide a wide range of international phone cards to call from USA to Mongolia - CELL.

Bizon calling card is a invulnerable, comfortable and simple way to get in touch with recipient abroad. The most important trait is the possibility to refill it. Thus, you can put money to the account without purchasing a new calling card.

This phone card has the following benefits.

  1. High-quality telephone services. No lines breaks, noise or any other common phone problems. If your recipient's phone is working properly, you will feel like you're talking to a someone living next door.
  2. Available pricing. On our site we've collected the cheapest calling cards. Your conversations won't be big-budget and you will discuss whatever you want with no hurry. You will be able to save up to 75% on international calls.
  3. Friendly and professional support. Have any inquiries? Feel free to ask our support agents via email, live chat or phone. Be sure - you will receive a accurate and quick answer.
  4. Instant delivery of the PIN-code on screen or by email. No need to wait - start calling right now!

How to use the calling card?

  1. Dial access number and wait for the prompt.
  2. Once you hear the prompt, select prompt language.
  3. Enter your card number and wait for the prompt.
  4. Dial your destination number. For international calls: 011 + countrycode + City Code + Phone Number

We're sincerely hoping to see you among our customers. We'll guarantee you high level of services and support in every step of using our international calls card. Our main purpose is to make people closer to each other and provide good and flawless communication even if people are thousands of miles apart from each other.

Start using our international call cards right now and enjoy premium class phone connection across the world!

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

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Customer Service

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

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Customer Testimonials

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Whenever I use your services they have been top class.

"The representative was very efficient and lovely to deal with!"

Frank, helped via chat support.

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