Enter the cool phone text, which serves as the substitute for number. You could use any alphanumeric characters, for example: callme1, iamgood. The text length must be exactly 7 characters long (Note: when you enter exactly 7 characters the input box will change its background color, which indicates that text length is OK). Press the on-screen button titled "Get Number", or just hit the "Enter" key on keyboard to get the numeric equivalent.