An apparatus and method is provided for transparent communication between a remote or mobile device and a fixed communication host network. The apparatus and method may include a remote network controller that logically resides between the host network and the existing infrastructure(s) that are used...http://www.google.com.hk/patents/US6826405?utm_source=gb-gplus-share專利 US6826405 - Apparatus and method for intelligent routing of data between a remote device and a host system