Tcp And Udp Protocols - Sony Ericsson GPRS and TCP-IP with the SEM GSM modules Application Note

Using GPRS and TCP/IP stack with SEM GSM modules

4.4 TCP and UDP protocols

The two main protocols that the unit supports are TCP and UDP a brief
explanation about each is given below.
TCP – This provides a reliable connection to another point in the network
i.e. numbers frames and keeps track of acknowledgements.
UDP – This is a 'fire and forget' protocol normally used with time critical
information such as voice i.e. the unit will packet the data up and send it
across the network.
In the future the units will be able to support higher level protocols such as
XML, WBXML, etc.
LZT 123 7699 R1A 10