308 results about "Dual-tone multi-frequency signaling" patented technology

A system and method for speech-responsive voice messaging, in which a Speech-Responsive Voice Messaging System (SRVMS) preferably provides a hierarchically-simple speech user interface (UI) that enables subscribers to use speech to specify commands such as mailboxes, passwords, and digits. The SRVMS generates and evaluates candidate results. The SRVMS invokes a speech UI navigation operation or a voice messaging operation according to the outcome of the evaluation of the candidate results. In the preferred embodiment, the SRVMS determines whether the candidate results are good, questionable, or bad; and whether two or more candidate results are ambiguous due to a likelihood that each such result could be a valid command. If the candidate results are questionable or ambiguous, an ambiguity resolution UI prompts the subscriber to confirm whether the best candidate result is what the subscriber intended. In response to repeated speech recognition failures, the SRVMS transfers the subscriber to a Dual Tone Multi Frequency (DTMF) UI. Transfer to the DTMF UI is also performed in response to detection of predetermined DTMF signals issued by the subscriber while the speech UI is in context. The SRVMS provides a logging unit and a reporting unit which operate in parallel with the speech UI, in a manner that is transparent to subscribers. The logging unit directs the selective logging of subscriber utterances, and the reporting unit selectively generates and maintains system performance statistics on multiple detail levels.

An data packet network telephony system provides identification information of an end user terminal making an Internet telephone call to a call center terminal and provides a call center agent with the ability to cause an end user terminal making an Internet telephone call to display selected web pages and or to synchronize displays between the agent and end user terminals. In one embodiment, customer identification information is provided in-band. In another embodiment, customer identification information is accomplished out of band, in some cases using an identifier of the PSTN gateway as an index into a table to identify an end user terminal. In another embodiment, an agent may enter DTMF (dual tone multi-frequency tones) to push web pages to an end user terminal. In still other embodiments, a second communications link between the end user terminal and the agent's terminal is established, allowing for data sharing / synchronization.

A system and method include implementing and accessing a subscriber's telecommunications services, using a graphical user interface (GUI) via the Internet, and an interactive voice response (IVR) system via the public switched telecommunications network (PSTN). The system and method enable a subscriber to review, schedule and modify call forwarding information stored and implemented by a service control point (SCP) through a common server from any dual tone multi-frequency (DTMF) telephone and IVR system via the PSTN or any GUI and Web client via the Internet. The subscriber is able to build and edit call forwarding data, such as a scheduler and priority and rejection screening lists, by the GUI via the Internet for subsequent implementation.

The present invention relates to a communication method integrating network and extension forwarding to automatically broadcast caller messages to specific computer IP addresses, which will transmit in real-time the caller messages to a computer specified by each extension user, and display all kinds of information in a multimedia form, via network. The present invention comprises a main server, a caller ID module, a DTMF (Dual Tone Multi-Frequency) module, a telephone extension data base, a caller information database, a network communication interface, and a client-side program. When a user dials into an enterprise switch, the extension number that the caller intends to forward, and the caller's phone number will be retrieved, and be automatically transmitted to a computer specified by the extension user, thereby facilitating the retrieval of caller information for the extension user.

The present invention provides a system and method for voice based network management. A network management system uses voice based scripts that allow network management operations to be performed over a phone. In one embodiment, the voice based scripts use a Voice Extensible Markup Language (VXML). However, the voice based script can be any form of communication that allows a user to conduct network management operations using Dual Tone Multi-Frequency (DTMF) signaling or speech commands.

A system that concurrently provides multiple user interface (UI) mechanisms that facilitate control of an application state machine (e.g., unified message system). More particularly, the invention can create two relatively distinct user experiences, one via dual tone multi-frequency (DTMF) navigation and another through speech recognition navigation of a unified message system. In accordance therewith, one single underlying state machine can be used. Navigation and flow control (e.g., state transitions) in the state machine can be leveraged by multiple UI mechanisms that actively co-exist. The invention introduces speech recognition features together with other input mechanisms to drive the UI of an application state machine (e.g., unified messaging system). The speech recognition UI can be designed to provide a natural navigation through the application independent of a DTMF UI.