Error Message:

  • Article

The callback number contains an invalid character. Only the following 18 characters are allowed: 0 to 9, T, P, W, (, ), -, @, and space.

Explanation:

Invalid callback number. Only the characters 0 to 9, T, P, W, (, ), -, @, and space are allowed in the number.

User Action:

Enter the correct numbers and redial.