This professional WAP emulator displays mobile web pages and sites exactly as if they were loaded by real handsets. WML, XHTML MP and HTML documents are supported. WAP Proof works over HTTP as an ordinary HTML browser and has the most of its features, such as using bookmarks, changing the document encoding, offline working. Additional features are particularly useful for mobile content designers: viewing page source code, XML syntax validation, XML syntax highlighting, tolerance to XML errors, viewing entities as characters, logging of the HTTP traffic, modification of HTTP headers, direct access to the HTTP query, modification of POST requests, viewing WML context variables, control over WML events. The request entity is similar to that of a real handset, so you can develop an user-agent sensitive site. Several mobile devices (Alcatel, Motorola, Nokia, Sagem, Samsung, Siemens, Sony Ericsson) are emulated, so you can test your mobile site on several handsets. Additional HTTP attributes, for instance, the attribute containing MSISDN, may be easily added to the request.