Your administrator may require that you enter a billing code or authorization code (or both codes) after you dial a phone number. The billing code, called a Client Matter Code, is used for accounting or billing purposes. The authorization code, called a Forced Authorization Code, controls access to certain phone numbers.
When a billing code is required, the phone displays Enter Client Matter Code, the dialed number changes to "********", and you hear a special tone.
When an authorization code is required, the phone displays Enter Authorization Code, the dialed number changes to "********", and you hear a special tone. For security reasons, the phone displays a "*" instead of the number entered.
When both a billing code and an authorization code are required, you are prompted for the authorization code first. Then you are prompted for the billing code.