
v5rj3 (v5rj3) asked a question.
When we logged into Teams on our phones, we couldn't log in;
When we connect our mobile phone to the VPN, we log in Teams and jump to the login page supported by OKTA. What is the reason?
Why do I have to connect to a vpn to display the login verification screen on my mobile phone?

You may need to check with your IT support. There may be a sign on policy that prevents authentication outside of a defined network zone/IP range.