Please double check the link goes to the website you think it should. Be very careful if the page you go to asks for a password as it may be a scam to steal your account details!
Raw Link: //tel:(512)%20949-2400 <-- danger!
If you are unsure please test the website using:
Ask SSLTrust Ask ScamAdviser
If you are certain the domain is good you can whitelist the domain in future:
NEVER enter your email password in a web page!