A system and method that notifies the receipt of a voicemail message at an
IP telephone using one or more of instant messaging and short message
service. A preferred embodiment of the invention provides an IP telephone
that prepares a notification regarding the receipt of a voicemail
message. In one embodiment, the IP telephone queries the availability of
an instant messaging client via an instant messaging presence server, and
forwards the notification to the instant messaging presence server if the
instant messaging client is available. In another embodiment, the IP
telephone sends the notification to a short message service client via a
short message service gateway. In still another embodiment, the IP
telephone sends the notification to both instant messaging client and
short message service clients.