Patent ID: 7889731

Claim:
A system for delivering messages to a wireless access terminal, the system comprising: a messaging center in communication with a 1xEV-DO network, the messaging center arranged to receive a message having a telephone number as a destination address for delivery to the wireless access terminal, the messaging center having: a storage device storing a mapping between the telephone number, a mobile static identifier corresponding to a user of the wireless access terminal, and an IP address of the wireless access terminal in the 1xEV-DO network, the mapping between the telephone number and the IP address being based on a correspondence between the telephone number and the mobile static identifier, the mobile static identifier including a user id and a domain; and a central processing unit in communication with the storage device, the central processing unit being configured to: evaluate the mapping to determine the IP address of the wireless access terminal in the 1xEV-DO network; and transmit the message to the wireless access terminal using the 1xEV-DO network.