China can't get through to Bangkok.

There may be many reasons why China can't get through to Bangkok. Here are some possible reasons:

1. Incorrect number input: It is possible that the number you entered is wrong, which makes it impossible to dial. Please make sure that the number you entered is correct.

2. Network problem: It is possible that the network connection is unstable, which makes it impossible to make a call. I suggest you check your network connection to ensure its stability.

3. Restrictions on international calls: It may be that your mobile phone bill is insufficient, or the international call function is not enabled, which makes it impossible to make international calls. I suggest you check the phone bill and confirm that the international call function is enabled.

4. The line is busy: it may be that the emergency phone in Bangkok is busy and cannot be dialed. I suggest you try again later, or try to call the emergency number from other channels.

In short, if you can't make an emergency call in Bangkok, I suggest you check the above aspects first. If you still can't solve the problem, I suggest you consult relevant institutions or customer service for help.