What if I don't send a text message after going abroad?

You can try the following operations: Step 1: Check the SMS sending method and send SMS to the mainland: Send SMS directly to the third country: [00]+[ country code]+[mobile phone number] Step 2: Check whether the SMS center number is correct. Enter * # * # 4636 # * * View (or Information Settings-SMS Center) and iPhone in the dialing interface. It is suggested that you can change your mobile phone or card if you can, and check the problems of the terminal or mobile phone card. Note: China Telecom does not provide international MMS service for the time being. Step 3: Modify the number of the SMS center to set the Android phone, enter * # * # 4636 # * * in the dialing interface to find the SMS center, click the number string to be modified, and confirm the modification through the update button on the right. Find the SMS center in the SMS interface, press the menu key, and select Settings or SMS Settings to modify some models. IPhone, dial interface input *5005*7672* SMS center number # call key can modify SMS center number. If it still cannot be used after the above operations, please call China Telecom International Roaming/Hong Kong, Macao and Taiwan Roaming Service Hotline for consultation. For more service benefits, click "official website" below to answer your questions.