Can the mobile phone network band be used in any country now? Is it possible to customize the machin

Now relatively speaking, Apple's mobile phone can be used globally, but it cannot use the CDMA network, only the American version of the V-network Apple mobile phone is a three-network universal phone, which can be applied to the global network mode and frequency band. The domestic telecom version of the iPhone can also be used, but you need to change the telecom international card, so that you can use other networks when roaming abroad.

Other mobile phones also support network mode, but the frequency band support may not be enough, you need to look at the frequency band and network mode of the mobile phone and the roaming location.

If you are using a domestic mobile phone card to think abroad, you can go to the business hall of the corresponding communication company to open the roaming service (you need to pay a phone bill deposit). And consult the customer service roaming to the country can be used mobile phone network mode and frequency band. In addition, if you play ** and send SMS for international roaming, the cost is higher, and the charges vary according to the roaming country.

As for international roaming, using a mobile phone to access the Internet, the cost is more expensive. It is recommended not to think about it, or simply go to the roaming country to search for wifi wireless signal to surf the Internet, or buy a local mobile phone card to surf the Internet. This way you won't suddenly overspend and cause downtime.

Different countries have different frequency bands. It depends on which country you go to, you can find out on the Internet. There is an introduction to the frequency bands used by the world radio.

No, you can't use your national number to other countries

Full Netcom, mode frequency band, Qualcomm's CPU is the first choice for buying a mobile phone

Hello, China Mobile customized phones can be used abroad, but because some countries need mobile phones with different frequency bands to support use, if you are in Australia, there are no special restrictions on the use of mobile phones. Thank you for your reference!

The frequencies are different at home and abroad.

So it can't be used.

However, some mobile phones support several frequencies that can be used selectively.

Moto turns out that there are several that can.

If you want to customize your mobile phone, you can play abroad and use the 2G network, as long as you make a little change to your mobile phone card, and the detailed method can be completed by customer service.

Thank you for adopting

Whether the phone can be used in non-Chinese mainland depends on:

1.The network mode supported by the phone;

2.Whether the network frequency band matches the network frequency band of the country and region you are going to. If it matches, it can be used.

If you use a domestic SIM card, you need to contact the domestic carrier to activate the international roaming service and verify whether it supports it. If you are using a SIM card other than Chinese mainland, you need to contact the operator to verify the network frequency band.

Some need to buy an international** card, such as Japan.

Yes, but international roaming is required.

Can be used.

As long as the mobile phone supports the local network standard and network frequency, you can use the mobile phone card of the domestic operator or the mobile phone card of the local operator.

During the contract period, the user can only use the mobile phone card of China Unicom to open international long-distance and national roaming and then use it in South Korea, and cannot use other mobile phone cards. If the mobile phone has passed the contract period, you can refer to the use of bare metal, and it can also be used abroad or use a foreign card. For more information, please consult the mobile phone after-sales staff or the local 10010

Unicom**There is no lock card yet, you can use anything, you can buy it**, and then sell it**card, keep it for yourself, and those scalpers do it.

The customization machine is just customization, not a limitation!

Hello, yes, telecom mobile phones can roam around the world, and you need to open international roaming services before going abroad.

Yes, it's just that roaming fees will be very expensive, and if you want to study abroad, you still have to buy a mobile phone and apply for a card locally.

Mobile custom machine: It mainly depends on what signal you are going to in the country you want to use, if it can be used in the same way as the mobile signal, you can query it.