Abstract: A server may provide transcoding services (e.g. to transcode Web content for mobile devices) using a plurality of transcoders. To facilitate transcoder selection, server operations may be configured using a configuration framework in which the transcoders and respective mapping priorities are specified. The framework also supports the specification of, for any of the transcoders: a) respective device profile matching data for selecting a particular transcoder in response to a requesting device's profile; and b) a respective next transcoder to invoke thereby to chain transcoder invocations. The framework may be prepared in accordance with an XML schema. The server may be a wireless gateway or proxy server for mobile devices accessing Web-based content.