How to open temporary roaming SMS for telecom?

Opening method of short message for temporary roaming of telecom:

1. Check whether the mobile phone meets the international roaming conditions and whether the mobile phone matches the roaming national network standards;

2. Check whether the mobile phone is a post-paid new Tianyi international card;

3. Check whether the roaming function of the mobile phone is turned on. ?

Specific steps:

1, first enter the "International Roaming" page of Telecom official website;

2. Select "roaming city" (for example: Hong Kong)+enter "mobile phone number"+select "mobile phone type".

3. Step 3, complete the operation of "opening international roaming" according to the test results.