Voice data transmission with adaptive redundancy creates a voice data packet by packetizing the voice data payload and a number of redundant payloads selected from a set of previous voice data payloads. The voice data from the voice data payload is analysed to determine whether it is a critical or non-critical payload by classifying the received voice data as voiced or unvoiced. If at least a portion of the voice data is classified as unvoiced, the voice data payload is determined to be a critical payload. If it is a critical payload, then the voice data payload is added to the set of previous voice data payloads for inclusion as a redundant payload in subsequent voice data packets. The voice data packet is then forwarded for transmission over the network.

A method of identity authentication for VoIP call, used for a first communication device supporting SIP and blockchain transmission technology, the method comprising: requesting an identity signature from a second communication device during a SIP call establishment, receiving the identity signature transmitted by the second communication device, wherein the identity signature is generated by the second communication device according to a private key, querying a public key corresponding to the identity signature from a blockchain server, utilizing the public key to verify the identity signature when obtaining the public key from the blockchain server, so as to generate a verification result, and determining to continue or terminate the SIP call establishment based on the verification result.

A distributed voice applications system includes a voice applications rendering agent and at least one voice applications agent that is configured to provide voice applications to an individual user. A management system may control and direct the voice applications rendering agent to create voice applications that are personalized for individual users based on user characteristics, information about the environment in which the voice applications will be performed, prior user interactions and other information. The voice applications agent and components of customized voice applications may be resident on a local user device which includes a voice browser and speech recognition capabilities. The local device, voice applications rendering agent and management system may be interconnected via a communications network.

A system and method for delivering a message to a user makes use of a voice applications agent that is located, at least in part, on the user's local device, the voice applications agent being configured to perform a voice application in order to deliver the message to the user. The voice application comprises a set of instructions about how to interact with the user. Performing the voice application on the user's local device comprises the voice applications agent following the set of instructions that comprise the voice application in order to interact with the user.

A phone appliance and method of use are provided where the phone appliance can be used to make VoIP communications calls. In a preferred embodiment, the phone appliance includes an RF connection for connecting to a computer or other computing device for facilitating the placement of the VoIP communications calls. The phone appliance further includes a display or portal for depicting advertisements provided by various advertisers. The advertisements provided can be used to defray all or part of the cost associated with making VoIP communications calls. The portal can also be used to communicate with businesses for ordering products, such as ordering a pizza, and to perform various services, such as purchasing stocks. In an exemplary system, the phone appliance is used to transmit to a control center information related to the user of the phone appliance, such as interests and buying habits, and queries for receiving additional information for various advertised products and services. The control center transmits the queries to the appropriate vendors for providing the user with additional information. Other functions and features are provided to the phone appliance, such as being able to download e-mail messages stored within or received by the computer.

A system is provided that includes a first network interface for a first network type and a second network interface for a second network type that is different from the first network type. The system also includes at least one processor configured to cause the system to perform operations. The operations may include obtaining, from the first network interface, audio from a communication session with a remote device established over the first network and obtaining an indication of a communication device available to participate in the communication session and direct audio obtained from the communication session to a remote transcription system. The operations may also include directing the audio to the second network interface for transmission to the communication device, obtaining transcript data from the remote transcription system based on the audio, and directing the transcript data to the second network interface for transmission to the communication device.

A system and method for sending push notifications over different channels for different types of traffic is disclosed. The method includes establishing a first communication channel with a computing device, establishing a second communication channel with the computing device, associating a first category with the first communication channel, the first category having a first set of message types, associating a second category with the second communication channel, the second category having a second set of message types, receiving a message, determining a category for the message from the first category and the second category, and sending the message to the computing device using a communication channel associated with the determined category.

A method includes receiving a request to initiate an emergency call, directing, the mobile device to initiate the emergency call using a cellular network, receiving a network not available indication that the emergency call cannot be completed using the cellular network, selecting location information of the mobile device and requesting the emergency call be initiated by a VoIP client on the mobile device using the location information obtained from the selecting step.

Embodiments of the present disclosure provide a real-time voice transmission method and an associated mobile terminal. The method includes: starting collecting voice signal in response to a first user instruction; while collecting the voice signal: encoding and compressing the collected voice signal into voice data; identifying the voice data as a voice data segment and adding a transmission sequence identifier to the voice data segment when the length of voice data reaches a preset data length; generating and displaying a first visual indicator after sending the voice data segment to a voice server; stopping collecting the voice signal in response to a second user instruction; identifying remaining voice data as a last voice data segment and adding a last transmission sequence identifier to the last voice data segment; and generating and displaying a second visual indicator after sending the last voice data segment to the voice server.

A field device includes components to communicate with a control and/or asset management system of a process control system or with other field devices using any of several different communication protocols such as several different internet protocol (IP) protocols. This architecture allows for a single version of a field device to be provided in automation or plant control systems that use any of these communication protocols, thus saving on inventory and product development costs. Moreover, the multi-protocol field device or a system using the multi-protocol field device can manage the asset (read and write parameterized data from and to the asset) using one protocol while at the same time communicating real-time process/factory automation information using a second and different protocol. Moreover, the field device may be able to communicate to other devices including other field devices and host devices using both of these protocols or other protocols for different purposes.