Network-initiated method and system for establishing data communication using IP with a wireless terminal

1. A method comprising:

receiving, at a wireless network comprising a serving general packet radio service support node, a request to initiate an internet protocol session with a wireless terminal in communication with the wireless network, the request being received from the wireless terminal;

determining that the wireless terminal is available;

determining that the wireless terminal is internet protocol capable;

determining that the wireless terminal does not have an internet protocol address;

paging the wireless terminal over a control channel, wherein paging comprises sending a page comprising a standard instruction in a simple network management protocol to request that the wireless terminal obtain a temporary internet protocol address;

receiving, at the serving general packet radio service support node, a request for the temporary internet protocol address from the wireless terminal;

obtaining, by the serving general packet radio service support node, the temporary internet protocol address;

assigning the temporary internet protocol address to the wireless terminal; and

establishing the internet protocol session between the wireless network and the wireless terminal.

2. The method of claim 1 , wherein the serving general packet radio service support node requests the temporary internet protocol address from a gateway general packet radio service support node of the wireless network.

3. The method of claim 2 , wherein the gateway general packet radio service support node of the wireless network assigns and registers the temporary internet protocol address for the wireless terminal.

4. The method of claim 2 , wherein the serving general packet radio service support node establishes a packet data protocol context with the wireless terminal.

5. The method of claim 1 , wherein the temporary internet protocol address comprises a temporary dynamic internet protocol address.

6. The method of claim 1 , wherein determining that the wireless terminal does not have the internet protocol address comprises instructing a home location register of the wireless network to interrogate a gateway general packet radio service support node of the wireless network to determine whether the wireless terminal has been assigned the internet protocol address, and determining that the wireless terminal has not been assigned the internet protocol address.

7. The method of claim 1 , wherein the internet protocol session comprises a voice over internet protocol session.

8. A non-transitory computer readable medium having stored thereon instructions that, when executed by a processor, causes the processor to perform operations comprising:

receiving a request to initiate an internet protocol session with between a wireless network and a wireless terminal, the wireless network comprising a serving general packet radio service support node, the request being received from the wireless terminal;

determining that the wireless terminal is available;

determining that the wireless terminal is internet protocol capable;

determining that the receiving wireless terminal does not have an internet protocol address;

paging the wireless terminal over a control channel to request that the wireless terminal obtain a temporary internet protocol address, wherein paging comprises sending a page comprising a standard instruction in a simple network management protocol;

receiving a request for the temporary internet protocol address from the receiving wireless terminal;

obtaining the temporary internet protocol address from a gateway general packet radio service support node;

assigning the temporary internet protocol address to the wireless terminal; and

establishing the internet protocol session between the wireless network and the wireless terminal.

9. The non-transitory computer readable medium of claim 8 , wherein the determining that the receiving wireless terminal does not have the internet protocol address comprises instructing a home location register of the wireless network to interrogate the gateway general packet radio service support node of the wireless network to determine that the receiving wireless terminal has not been assigned the internet protocol address.

10. A method comprising:

receiving, at a wireless network comprising a serving general packet radio service support node and a gateway general packet radio service support node, a request to initiate an internet protocol session with a wireless terminal in communication with the wireless network, the request being received from the wireless terminal;

determining that the wireless terminal is available;

determining that the wireless terminal is internet protocol capable;

determining that the wireless terminal does not have an internet protocol address;

requesting that the wireless terminal obtain a temporary internet protocol address by transmitting a page to the wireless terminal over a control channel, the page comprising a standard instruction in a simple network management protocol;

receiving a request for the temporary internet protocol address from the wireless terminal;

obtaining, from the gateway general packet radio service support node, the temporary internet protocol address;

assigning the temporary internet protocol address to the wireless terminal; and

establishing the internet protocol session between the wireless network and the wireless terminal.

11. The method of claim 10 , wherein the gateway general packet radio service support node assigns and registers the temporary internet protocol address for the wireless terminal.

12. The method of claim 10 , wherein the serving general packet radio service support node establishes a packet data protocol context with the wireless terminal.

13. The method of claim 10 , wherein the temporary internet protocol address comprises a dynamic internet protocol address.

14. The method of claim 10 , wherein the internet protocol session comprises a voice over internet protocol session.