Measuring wireless network performance from a remote site uses a mobile handset that may include an appropriate world wide network browser. A user connects the mobile handset to the remote site via the wireless network which is coupled to the world wide network. Once the connection is made, application software at the measurement site sends commands to the mobile handset and in response the mobile handset sends measurement data to the application software. The application software processes the data to provide information about the wireless network performance including analyses for predictive and diagnostic purposes, since measurement data from many handsets, many locations and many base stations at many times may be collected at one central location.