Do I need a card for facetime of iphone4?

As long as your card can send international short messages, you can use it, regardless of mobile Unicom. The specific method is to call customer service and ask if yours can be sent.

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The following problems may occur during the installation of Iphone4:

First, your mobile phone sim card or your mobile phone number can send international short messages.

Generally speaking, Unicom's card can only send international short messages if it has 3G function. For other types of numbers, call customer service to find out if you can send international short messages. You can't send international text messages, and you can't register your facetime account. The account number starts with 0044, which is the SMS gateway of facetime server. It is said to be the special service number of Britain, hehe. The mobile phone number has not been tested, but it is said that the mobile phone opens international SMS by default.

Generally speaking, the tariff for international short messages is 80 cents, and some people say that it is a piece. There is no charge after successful registration, that is to say, only one charge is made. But if you change the number, you will have to charge again to open facetime.

Second, you still can't register facetime after opening 3G.

At this time, you need to make sure that the SMS function is not working. Because I have met twice, that is, after the ordinary number is converted to 3G service, the short message cannot be sent, but can only be received, which means that even if the international short message service is opened, it is impossible to register.

Usually you call the customer service, and they will ask you to set up a short message gateway, but there is nothing wrong with the short message gateway. In this case, you must ask customer service several times to explain the situation.

This analysis may be related to the switching of different network service types. Generally 1 day will be solved.

Query SMS gateway and settings, there are many online, can be found at any time.

Third, how to add users after opening facetime

If both parties are ip4, make a phone call once, and then there is the facetime option. Just start facetime in wifi environment.

If one party is ip4 and the other party is it4, then it4 doesn't have a mobile phone number, so you need to add a contact person and fill in the email address of registered facetime of it4 in the contact information.

Setup problems of itouch4:

First, registration

Quite simply, facetime's email address can be different from itunes's. Once registered successfully, you can use it at any time.

Second, add contacts.

The contact of IP4 is to fill in the other party's mobile phone number in the newly created contact. Remember to add +86 before the mobile phone number. In addition, long press the plus key of 0 will come out. The contact person of IT4 is to fill in the email address when editing the user information.

Other questions:

First, when using facetime, you don't have to use headphones. The radio has a good reception and can be heard from a distance. Of course, when talking about personal topics, you should use headphones.

Second, facetime has no photo function when connecting. Some people say that you can use the screen capture function. I haven't tested it and I don't know.

Third, after facetime is connected, other programs can be carried out. For example, both parties can keep voice calls while playing other games or running other programs. At this time, the video function is suspended and the voice is normal. The effect is also good.