How to send a text message to 1000 1 to change the product password?

Hello, taking telecom as an example, users can directly log in to the telecom online business hall to modify the password of mobile phone service:

First log in to the online business hall of China Telecom, click Login and enter your mobile phone number, and then click Forgot Password, as shown in the figure below:

After entering, select the first reset service password, and then click Enter.

Then fill in your mobile phone number and the received verification code, and you can reset the new service password.