Sony Ericsson GR64 9 TCP/IP Stack, 9.1 Implementation

An on board IP/TCP/UDP stack has been integrated into the software negating the need for the customer to implement one in their own code base.

This is accessible by using an embedded application (see section 9) using intrinsic functions.

The following types of commands allow various functions:

•Open/closing IP connections - Negotiates/closes an IP address with the web server.

•Send/Receive TCP packets - Performs all TCP operations to send and receive packets.

•Send/Receive UDP packets - Performs all UDP operations to send and receive packets.

•Resolve URL to an IP address - Similar to nslookup command in DOS When the unit is set up and controlled using the embedded applications.

The embedded applications or an external application can generate data to be sent and pass it to the wireless modem for transmission.

This effectively provides a transparent communication link from the application to an internet server over GPRS.

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