Q & A on WAP and TCP.

Q: I would like to know why is that why WAP doesn't use TCP?

A: WAP (Wireless Access Protocol) isn't a transfer protocol like HTTP. Instead, it's a complete protocol stack. Although WAP doesn't rule out using TCP, the main focus is on handheld devices:

1) WAP is intended to run over existing protocols that have been developed for delivering data across the cellular telephone system (e.g., CDPD).

2) WAP is optimized for delivery channels that have low bandwidth.

If reliability is needed, the Wireless Session Protocol (WSP) component of the WAP stack must provide it.