From your fax application view point it s a fax modem pool. From IP network view point it s a H.323 endpoint with T.38 fax support. From your view point it s a gateway between a fax application and IP network.
WSP is an HTTP to WSP proxy that can be used to forward HTTP requests to WSP, which is used in WAP 1.x. It may be called a reverse WAP gateway, and enables you to test or browse WAP sites with HTTP tools. It also can be used with penetration test tools.
WebServices_WebSphere_Version_5
Objectives
§ Web Services Overview
• What are Web Services?
• Roles and Functions of Web Services
§ Web Services Runtime
• Base Support
• IBM WebSphere UDDI Registry (Private UDDI)
• Web Services gateway (WSGW)
§ Problem Determination
§ Web Services Security
§ Technical Previews
§ Summary