Blackberry Corporation

Amazon Technologies, Inc.

Mee Tchin Jane John Chuan

Valentina Iqorevna Kramarenko

Boris Rozinov

Swee Tuan Pang

Tu Dien Do

Cheuk-man Kong

Usman Ismail

Dev Doongoor

Iulian Vlasov

Punipriya Misri

A system capable of connecting a device to a Public Switched Telephone Network (PSTN) using an adapter. During a telephone call using the PSTN, the adapter may receive an incoming call from the PSTN and send caller identification to remote server(s). The remote server(s) may determine an identity of a first user currently on the telephone call and determine that the incoming call is directed to a second user. Based on the caller identification, the remote server(s) may send a notification to the second user indicating the incoming call. Alternatively, the remote server(s) may interrupt the current telephone call to announce the incoming call. For example, if a parent is on the telephone when an incoming call for a child is received, the remote server(s) may send a text message to the child without interrupting the current telephone call.

Voice user interface for wired communications system

A system capable of connecting a device to a wired communication network (e.g., Public Switched Telephone Network (PSTN)) using an adapter. During a telephone call using the PSTN, the adapter may mix two or more audio streams to enable multiple devices to join the telephone call. However, the adapter has limited resources. If the adapter receives a request from an additional device to join the call, the adapter may send a notification that indicates a maximum number of endpoints has been reached. To enable audio mixing for additional devices, the system may send multiple audio streams to a communication server to be mixed and the mixed audio stream are sent to the adapter to be output using the PSTN. The communication server may receive the audio streams from the adapter or directly from the devices.

Enabling additional endpoints to connect to audio mixing device

A system capable of connecting a device to a Public Switched Telephone Network (PSTN) using an adapter. The adapter may receive caller identification from the PSTN during a second ringing signal and may send notifications to remote server(s) indicating the caller identification. The remote server(s) may use the caller identification to enable additional functionality in a speech processing system. For example, the remote server(s) may identify contact information corresponding to the caller identification, may determine information about the contact, such as recent meetings, communications, or the like, and may output the information when announcing the incoming call. In addition, the remote server(s) may compare the caller identification to a database of spam and indicate that the incoming call is possible spam.

The present disclosure provides a system and method for applying authentication and security policies in a SIP environment. In accordance with one embodiment, there is provided a method for use on a SIP server, comprising: establishing a persistent connection with a user agent (UA); initiating an idle connection timeout countdown timer; performing authentication of an initial REGISTER request using a first level of authentication; and terminating the persistent connection when the initial REGISTER request is not validated before expiry of the idle connection timeout countdown timer.

System and method for applying authentication and security policies in a SIP environment

The present disclosure provides a system and method for Session Initiation Protocol (SIP) user agent identification and efficient binding. In accordance with one example embodiment, there is provided a method for use on a Session Initiation Protocol (SIP) registration server for registering user agents, comprising: receiving a REGISTER message which includes a binding key; determining whether a prior binding associated with the binding key exists in a registration repository; and creating a new binding associated with the binding key and adding the new binding to the registration repository when no prior binding associated with the binding key exists in the registration repository.

System and method for SIP user agent identification and efficient binding

A device and method are described for establishing a dialog between Internet Protocol (IP) end points using a peer-to-peer (P2P) architecture. The device, method and computer readable memory utilize servers to determine one or more possible addresses to attempt the dialog establish using. The device and methods described allow for an early discovery of an end point address which can be used for the dialog establishment.

Dialog establishment over a peer-to-peer architecture

Rather than defining roles in terms of those resources and/or actions pertaining to the resources that are permitted to subjects having that role, it has been found that by instead defining a role by negative permissions, i.e. those resources and/or actions related thereto that are not permitted to subjects in that role, the evolution of a system is more convenient to manage. In this way, the system is only required to track and update the denied resources for particular roles. It has also been recognized that by defining a role in terms of negative permissions, i.e. what subjects in that role cannot do, malicious users can be thwarted from creating false user accounts since selecting functions associated with the resources takes permissions away rather than adds them.

Growing community of inventors

Richmond Hill, Canada

Mee Tchin Jane John Chuan