A network-based voice messaging system is provided. A voice message is received at a network. The network converts the voice message into a text message by utilizing speech recognition software. The text message is transmitted to the intended recipient as an electronic mail (e-mail) message or facsimile...http://www.google.com.hk/patents/US6654448?utm_source=gb-gplus-share專利 US6654448 - Voice messaging system