Patent ID: 8315651

Claim:
A system for providing a wireless communications device access to an instant messaging service on a data network, the instant messaging service communicating instant messages in an instant message format, the system comprising: a wireless communication network; a short message service (SMS) center connected to the wireless communication network; a plurality of information handling systems connected to the data network and logged into the instant messaging service for sending and receiving instant messages; a wireless communications device, comprising: a battery; a processor, operatively coupled to the battery, configured to control and monitor a discharge state of the battery; the wireless communications device configured to: operate in an active state where the wireless communications device is powered on but is not connected to the wireless communication network; receive at least a portion of an intercepted instant message as a converted message while in the active state and without having a connection to the data network; and a proxy server having a first connection to the SMS center and a second connection to the data network, the proxy server configured to: establish a substitute proxy presence on the data network for the wireless communications device; transmit presence information to the instant messaging service, in response to receiving instant messaging service login information from the wireless communications device; maintain the presence information even when a data connection does not exist between the wireless communications device and the wireless network; intercept and store an instant message addressed to the wireless communications device as the intercepted instant message, when the wireless communications device is in the active state; convert at least a portion of the intercepted instant message into the converted message having a short message format, and send the converted message to the wireless communications device through the wireless network via the SMS center; convert an identifier of a sender of the intercepted instant message into a converted identifier having a short message format and send the converted identifier to the wireless communications device; save the entire intercepted instant message for a period of time, wherein a data connection to the proxy server by the wireless communications device enables viewing the entire intercepted instant message via the wireless communications device; receive a response short message from the wireless communications device that is addressed to an information handling system of the plurality of information handling systems, convert the response short message into a converted response message having an instant message format, and send the converted response message to the information handling system.