Abstract: A method and apparatus for implementing a presence based universal camp-on feature in packet-based telephony systems are disclosed. A first packet-based device is subscribed to a line status of a second packet-based device. A first notification is received into the first packet-based device from the second packet-based device when the line status of the second packet-based device is in a busy state. A second notification is received into the first packet-based device from the second packet-based device when the line status of the second packet-based device is in an idle state. A user of the first packet-based device is prompted with an option to establish a communication session with the second packet-based device upon receiving the second notification into the first packet-based device. A communication session is established between the first packet-based device and the second packet-based device in response to receiving an accept-call command into the first packet-based device.

Abstract: A method for call parking in a network telephony system is disclosed. A first user agent and a second user agent establish a communication session, and the second user agent enters a call park number to initiate a call park of the communication session. Subsequently, the call park number and the location of the second user agent are sent to a server, which authorizes the second user agent for call parking. The server then registers the call park number, and the communication session between the first and second user agents is parked. When a third user agent wants to pick up the communication session, the third user agent calls the server by entering the call park number. The server then routes the third user agent to the second user agent, which in turn refers the third user agent to the first user agent. The first and third user agents then establish their own communication session, the communication session between the first and second user agents is terminated, and the call park number is deregistered.

Abstract: A system and method are described whereby a mobile device controls access to mobile applications based on access conditions associated with a current access network. To prevent mobile applications from running when the access conditions are not suitable, the mobile device includes a policy database used to store a list of access conditions that are inappropriate for launching the installed applications. The access conditions are based on the type of the current access network used by the mobile device for launching or maintaining the requested application session. The access conditions indicate whether the mobile device is currently accessing its home network or roaming on another provider's network. Similarly, the access conditions indicate the type of network access interface used by the current network to provide the data connection necessary to run the requested application. The policy database correlates predetermined actions with the access conditions associated with a given application session.

Abstract: A system and method are described whereby an IP telemetry gateway is hosted by an MVNO in order to relay the telemetry information between remote devices located in an IP network and telemetry servers operated by legacy telemetry customers. In an embodiment, the IP network is a CDMA2000 1× wireless network. Once the IP network identifies a device as part of the telemetry network, it assigns such device a static private IP address. A VPN connection is used to extend the private network of remote devices to the IP telemetry gateway. The IP telemetry gateway maps each remote device's legacy address to its corresponding IP address in order to communicate with the legacy servers and the wireless network via circuit switched and packet data connections respectively. Preferably, the remote devices maintain an always on data connection to allow the telemetry servers to address the remote devices at any time.

Abstract: A method and system for scheduling a conference call using a packet-network telephone in which a user interface of the packet-network telephone (i) is provided with a user directory that comprises a list of potential conference call participants that are selectable via the user interface, (ii) receives from the user interface, a selection of one or more persons selected from the user directory list to participate in the conference call, and (iii) transmit a signaling protocol message from the packet-network telephone to a packet-network, where the signaling protocol message is destined for a serving device for scheduling the conference call. The signaling protocol message comprises a request to schedule the conference call and a respective identifier for each of the one or more persons selected from the user directory to participate in the conference call.

Abstract: A method is shown for splitting a static pool of Internet Protocol (IP) addresses in a Remote Access Server (RAS) of a network server device into a dynamically assignable pool and a fixed assignment pool. The IP addresses of the dynamically assignable pool are available to any remote client connecting to the network server. The IP fixed assignment pool contains IP addresses that have a predetermined assignment to specific remote clients. When a remote client connects to the network server, it requests assignment of an IP address from the RAS. If the remote client does not specify an IP address in its IP address request, then an IP address from the dynamically assignable pool is assigned to the remote client for the duration of its connection to the network server. If the remote client does specify an IP address in its IP address request, then the fixed assignment pool is searched for the requested IP address and the address is assigned to the remote client.