How are WAP 1.1, 1.2 and 1.3 different?
As the WAP specification develops, new software releases will be made. WAP is a software protocol and new enhancements will be made over time. WAP 1.1 is supported by the vast majority of mobile WAP devices on the market, although this has no in-built facility for push technologies, such as user alerts and notifications. Push Access Protocol (PAP) will be part of the WAP 1.2 specification (released July 2000).