Trying to join a server with a Phone Verification requirement? Something fishy going on here? Phone number doesn't seem to be working?

There could be a few different issues, so let's look at what is going on.

Phone Verification

Discord currently uses phone verification as an anti-abuse tool. Private servers can also set up a phone verification requirement for extra security. 

Invalid Phone Number

If you receive the Invalid Phone Number message when you are trying to complete your verification, it could be for the following reasons:

• VOIP, Burner/Prepaid, and Landline numbers can not be used to complete verification. You must use a mobile number to verify.
• You have not correctly filled out the text entry field. Make sure that you select the correct country code for your number.
• Have an alt account, or help a friend complete their verification? Your phone has just been registered and is on timeout. Unfortunately we can not lift this, and you will need to wait for the end of the timeout to use the number once more, or use a different number to verify the account.