An intermediate server communicatively coupled to a mobile phone associated with a first phone number corresponding to a first contact type and a second phone number corresponding to a second contact type, receives a request to receive an incoming call associated with a caller phone number. The request corresponds to the first or second phone number. The intermediate server identifies a contact type associated with the request and a contact type associated with the caller based on the caller phone number. The intermediate server further determines whether the caller is misclassified by comparing the contact type associated with the request and the contact type associated with the caller. In addition, the intermediate server sends a notification indicating that the caller is misclassified to the mobile phone in response to determining the contact type associated with the request and the contact type associated with the caller do not match.