Aspects of the present invention confirm that a phone number is associated with a particular phone. The phone number is confirmed to be associated with the phone by causing the phone to transmit a verification message addressed to that phone number. Receipt by the phone of the verification message confirms that the number is associated with that phone. Another aspect of the invention concerns updating the status of phones in a status list of phone numbers on a phone by sending the status list and updated status of the phone to a network server. The server monitors the status of at least one of the phones in the status list and transmits that status to the phone, which updated status is then displayed in a display area of the phone.