I can't open the link sent by telecom.

There may be many reasons why the link sent by telecom can't be opened. Here are some possible solutions:

1. The link sent by SMS may contain special characters, which makes the mobile phone unable to recognize the link. You can try to delete special characters, then copy the link to the browser and try to open it.

2. Links may be blocked by the browser. You can try to whitelist the URL, or try to open it in another browser.

3. If the network is unstable, the link may not be opened. You can try using other networks or tools such as VPN to see if you can solve the problem.

If the above methods can't solve the problem, it is recommended to contact telecom customer service for more detailed information and solutions.