Steam, how long does it take to send text messages abroad?

The steam server exploded and CSGO was greatly updated. The test shows that domestic mobile phone numbers can't receive short messages, and foreign mobile phone numbers and mailboxes can receive them normally, but it takes 12 hours.

Foreign short messages are also called international short messages. Mobile phones do not need international roaming to send international short messages, just like sending short messages. As long as you pay attention to the format when entering the other party's number, you can send messages to overseas mobile phones.