There are mainly the following ways to make international long-distance calls with a mobile phone:

1. Direct dialing: To make calls in this way, you need to go to the business hall of the mobile phone operator to activate the international long-distance service. Usually, you need to pay a deposit to activate the international long-distance service. You can go to the business hall with your ID card to apply for it. After activating this service, you can directly enter the number with your mobile phone to make a call. For example, if you want to make a call to the United States, you can directly enter 001*****. People say that making international long-distance calls is expensive. The price of making international long-distance calls in this way is very expensive. Most people will not choose this way to make calls unless they have to make international long-distance calls.

2. Using an IP phone card: Compared to direct dialing, using an IP card to make international long-distance calls is cheaper. The most famous IP cards for making international long-distance calls are 17909 of China Telecom and China Unicom, 17901 of China Telecom, etc. Many IP cards can make international long-distance calls, but the charges are slightly different. As for the use of IP cards, it is not difficult. Usually, it is access number + area code + phone number. For example, if you use 17901 of China Telecom to make a long-distance call to the United States, you just need to enter 17901+001+called number on your mobile phone.

3. Using a callback card: Many people may not have heard of this card. This is a way to make international long-distance calls, and the charges are much cheaper than IP cards. This card has two ways of dialing: computer dialing and mobile phone dialing. No matter which dialing method is used, the call is finally made with a mobile phone. Of course, not all cards have these two ways of dialing, but some more famous cards have them, such as Shanshan Card. The way to use this card is generally to dial an access number first, and then the other party hangs up and calls back. After answering, enter the number to make the call.

4. Internet software phone calls: Internet software phone calls do not have to be made with a computer. Now many Internet software phones have mobile phone versions, such as skype (skype.tom.com), Alitong, KC, etc., which have mobile phone versions of software. After installing the software on the phone, you can also make international long-distance calls. The charges are the same as those made by computer. However, you need to pay attention to the fact that mobile phone versions of software generally require data charges to make calls, so it is recommended that you go to a place with WIFI to make calls. Notes:

1. Number input format: No matter which dialing method is used, the format of the number input must be international prefix code 00+called country area code+called number. For example, to dial the US number 281***, you should enter the international prefix code 00+US area code 1+called number, that is, 001281***.