Is there a 133 callback service for international roaming?

China Unicom 4G, 3G, and 2G users (except OCS users) can use the **100* service provided by China Unicom when they need to make a call back to China** abroad

International roaming callback service) to enjoy preferential roaming tariffs. The *100* callback service tariff is the same as the roaming call tariff.

Instructions for use Text 1, please confirm that you have opened the international roaming function before going abroad: 1), dialing methodIf the user you are calling is a domestic mobile phone user, dialing method: **133*86 called number For example:

Call a mobile user 18901234567, dial by: **133*8618901234567 If the user you are calling is a domestic country** or PHS user, dial by: **133*86 area code and the called number For example:

The called number is a Beijing fixed** user 58008899, dialing method: **133*861058008899 Dialing range of domestic fixed**, PHS and mobile phone users, that is: can call China Telecom, China Mobile, China Unicom any user 2), after the call, when you see the mobile phone screen display "OK, please wait", please hang up, wait for the system to call back (about 30 seconds, no more than 1 minute).

3), about 30 seconds later, will receive the system to call you**, the number displayed is the number you are calling, answer and you can call the user. 4) If the service fails, your mobile phone will display the corresponding failure prompt according to the reason for the failure, and the reasons for the failure may be: (1) The input format is incorrect

The phone shows "sorry, wrong number"; (2) The called number entered is not within the scope of this service: the mobile phone displays "sorry, wrong number"; (3) The roaming network you are on does not support the service function: the mobile phone displays "sorry, network not support"; 2. If the ** you are calling cannot be connected, you will receive a short message reminding you that the **133 service cannot be connected to the called user's reason:

1) The called party is busy; The text message reads: "The ** you dialed is busy, please dial again later". 2) No one answered the callee, and did not answer for a long time; The content of the text message is displayed:

The ** you dialed was not answered, please dial again later". 3), the called party's ** number is empty; The text message reads: "The number you dialed is empty, please confirm before dialing".

4) The number of the called party cannot be connected (network reasons); The content of the text message displays: "The number you dialed cannot be reached, please dial again later"3. If the called party** has been connected, because your mobile phone cannot be connected, your mobile phone will receive a short message prompt. The content of the text message is displayed:

Due to the inability to reach your **, the callback service failed, please try again". Note: You don't have to pay anything.

User Guide **Thank you for your interest in telecom products and wish you a happy life. If the above information does not solve your problem, you can also log in to Guangdong Telecom mobile phone**(