Research in Motion Corporation

Blackberry Corporation

Frederick Chee-Kiong Lai

Thomas Charles Nagy

Miranda Bing Ying Lim

Miranda Lim

The transmission of signaling frames in a QoS system may be prioritized over the transmission of content frames carrying time-sensitive information. The signaling frames and the content frames may belong to a single communication session. Alternatively, the signaling frames may belong to a different communication session than the content frames. The signaling frames and the content frames may be audio frames, video frames or frames of other time-sensitive information.

Wi-Fi quality of service signaling

A method and system for conducting communications over a network is provided. An embodiment includes a server that is connectable to a client machine via a virtual private network that includes a VPN concentrator. The client machine and the VPN concentrator are configured to delay renegotiation of the VPN link in the event that an important stream is being carried over the VPN link.

Method and system for conducting communications over a network

Method, system, device, computer-readable medium, and network for carrying communications

Techniques for registering for communications for a communications application stored in a mobile device are described. The mobile device communicates, via a communication network, a request for a connection with a private network. If the connection is established within a predetermined period of time, then the mobile device receives from the private network a first IP address for assignment to the mobile device, and communicates to a server a request for registering for the communications using the first IP address assigned to the mobile device. If the connection is not established within the predetermined period of time, then the mobile device communicates to a server a request for registering for the communications using a second IP address assigned to the mobile device.

Methods and apparatus for use in establishing communications for virtual private networking

A BOOKMARK element is proposed to be included within the HEAD element of a markup language document. Such a BOOKMARK element is intended to provide a default bookmark label that is to be associated with a Universal Resource Identifier (URI) of a markup language document when storing the URI of the markup language document as a bookmark or favorite. A short, to-the-point label suggested by an author of the markup language document may be seen as beneficial particularly to users of mobile communication devices. Such a suggested label may also greatly improve the user experience of desktop-based browsers.

Markup language element to provide label for stored URI

A processor of a mobile device operates to establish communications for a communications application by performing the following acts upon invocation of the application when the mobile device is connected in a communication network outside of a private network. Initially, the processor causes a request for a VPN connection with the private network to be communicated, and awaits the establishment of the VPN connection. If the VPN connection is established within a predetermined period of time, the processor operates to receive a private IP address of the private network and cause a request for registration using the private IP address to be communicated to a registration server for the private network. If the VPN connection is not established within the predetermined period of time, the processor causes a request for registration using a public IP address to be communicated to a registration server for the communication network.

A mobile communication device includes a wireless transceiver, one or more processors coupled to the wireless transceiver, memory, and a communications application stored in the memory. The communications application may be a VoIP telephony application which involves communication in accordance with a session initiation protocol (SIP). The one or more processors are operative to receive a public IP address assigned to the mobile device in a public network; cause a request for a virtual private network (VPN) connection with a private network to be communicated; refrain from registering with a SIP server for the communications using the public IP address; and if the VPN connection is established: receive a private IP address assigned to the mobile device for the VPN connection and cause a request for session registration using the private IP address to be communicated to a SIP server of the private network.

Growing community of inventors

Waterloo, Canada

Frederick Chee-Kiong Lai