Abstract: A communication device has a data application and a voice application. The device establishes a data session between the data application and a data system. During the data session, the device receives a voice session request from a voice communication system, and in response, alerts the user of the request. The device receives a user acceptance of the voice session request, and in response, transfers a voice session acceptance indication from the voice application to the data application and tracks elapsed time since the user acceptance. The communication device transfers a voice session acceptance from the voice application to the voice communication system if the voice application receives a data application ready indication from the data application or if the elapsed time since the user acceptance reaches a set time period, whichever occurs first.

Abstract: A wireless communication device has first processing circuitry and second processing circuitry that are separate from one another. The wireless communication device transfers first wireless communications to a wireless network using the first processing circuitry. The wireless communication device identifies a reboot condition for the first processing circuitry and responsively provides a geographic location of the wireless communication device to the second processing circuitry and displays a user interface for communications using the second processing circuitry. The wireless communication device reboots the first processing circuitry while the user interface for communications is displayed. The wireless communication device transfers second wireless communications to the wireless network using the second processing circuitry while rebooting the first processing circuitry.

Abstract: Embodiments disclosed herein provide systems and methods that allow a mobile device to fully access unified communication services. In a particular embodiment, a mobile device receives a user input indicating a destination identifier for a call and processes the destination identifier to determine whether the destination identifier is associated with a unified communication service. If no, the mobile device connects the call. If yes, the mobile device generates and transfers a text message indicating that the mobile device is requesting the service to an intermediate communication system in a first carrier network. The intermediate system receives and processes the text message to determine a first portion of the service that is associated with the mobile device. The intermediate system initiates the call to the mobile device to connect the mobile device with a unified communication system via the intermediate system and provides the first portion of the service.

Abstract: A method for registration of endpoints within in IP Multimedia Subsystem network is described. One embodiment includes receiving a request from an endpoint to deregister the endpoint. A deregistration routine is initiated to deregister the endpoint within the IP Multimedia Subsystem network. The registration status of the endpoint and any call forwarding data is stored within the IP Multimedia Subsystem network.

Abstract: What is disclosed is a wireless communication device comprising a processing system and a user interface system. The processing system identifies a software update that requires a reboot of the wireless communication device. In response, the processing system determines a geographic location of the wireless communication device, initiates a user interface for emergency calls during the reboot of the wireless communication device, and reboots the wireless communication device. The user interface system presents the user interface for emergency calls during the reboot of the wireless communication device.

Abstract: A presence management system comprising a communication system configured to transmit a first update message indicating a first presence status of a user for a first service, and transmit a second update message indicating a second presence status of the user for a second service, and an access control system configured to receive the first and second update message, process the first and second update messages to determine a preferred service for the user of the first and second services, and transmit a third update message to a presence system indicating the user and the preferred service for the user wherein the presence system updates a presence indicator for the user to indicate the preferred service.

Abstract: A method and system are provided to derive time attributes for a device. An embodiment of the method includes obtaining a time attribute based on a device-mode and a corresponding time attribute based on a device-location. The corresponding time attributes are compared. Upon comparison, if the time attribute based on a device-mode differs from the time attribute based on a device-location, an update indication to modify the first time attribute to conform with the second time attribute is communicated.

Abstract: Multimedia services are provided to a subscriber within a domain of a communication network, wherein the subscriber utilizes one or more predetermined access terminals to access the multimedia services according to a network presence configuration of the subscriber. Each access terminal has respective multimedia capabilities, and the domain includes an application server for accessing the multimedia services. A user profile is established for the subscriber relating respective presence identifiers to a respective user service definition, wherein each user service definition specifies a set of the predetermined access terminals and respective multimedia services to be available for a respective network presence configuration. A current presence identifier of the subscriber is registered. The application server accesses the user profile to determine a user service definition corresponding to the current presence identifier.

Abstract: A communication system comprises an end system coupled to an access system and configured to transmit an invite message for a session wherein the invite message indicates a destination and an alias for the end system, a proxy system configured to receive the invite message and transfer a quality request wherein the policy request indicates the alias, a policy system configured to receive the quality request, determine a quality level for the session and transmit a quality message to the access system indicating the alias and the quality level, and the access system configured to receive the quality message, transmit a query to a database system indicating the alias, receive a network address for the end system in response to the query, identify traffic for the session using the network address, and apply the quality level to the traffic.

Abstract: A method of operating a communication system is disclosed. The method comprises acquiring a first frequency band for a first device to wireles sly communicate a first data stream. The center frequency of the first frequency band is f1. A second frequency band for a second device to wirelessly communicate a second data stream is acquired. The center frequency of the second frequency band is f2. A third frequency band that is below the first frequency band and is available is found. The center frequency of the third frequency band is f3. A fourth frequency band that is above the first frequency band and is available is found. The center frequency of the fourth frequency band is f4. If a frequency determination factor of (f1?f3)/(f4?f1) is greater than one, the third frequency band is acquired for the second device.

Abstract: A communication device has a data application and a voice application. The device establishes a data session between the data application and a data system. During the data session, the device receives a voice session request from a voice communication system, and in response, alerts the user of the request. The device receives a user acceptance of the voice session request, and in response, transfers a voice session acceptance indication from the voice application to the data application and tracks elapsed time since the user acceptance. The communication device transfers a voice session acceptance from the voice application to the voice communication system if the voice application receives a data application ready indication from the data application or if the elapsed time since the user acceptance reaches a set time period, whichever occurs first.

Abstract: A communication network comprising a plurality of domains, a first location server of a first domain of the plurality of domains, and a first gateway coupled to the first location server and configured to interwork communications between the first domain and a second domain of the plurality of domains wherein the plurality of domains provide a plurality of services. The first gateway, responsive to a first status change associated with a first service of the plurality of services provided by the second domain, transfers a first update message to the first location server wherein the first update message indicates the first gateway, the first status change, the second domain, and the first service.

Abstract: A method, system, and computer-readable media are provided for managing a handoff of a video session including a plurality of devices. The method can include monitoring a signal strength in a first access technology of a mobile device within a first video session. The method can additionally include detecting a change in the signal strength of the at least one mobile device and determining a second access technology for the mobile device. Moreover, the method can include establishing a second video session using the second access technology for the mobile device and the other devices within the first video session.

Abstract: A communication device has a data application and a voice application. The device establishes a data session between the data application and a data system. During the data session, the device receives a voice session request from a voice communication system, and in response, alerts the user of the request and transfers a voice session request indication from the voice application to the data application. The device receives user acceptance of the voice session request, and in response, transfers a voice session acceptance indication from the voice application to the data application. In response to the voice session indications, the device transfers a data session message from the data application to the data system and then transfers a ready indication from the data application to the voice application. In response to the ready indication, the communication device then transfers a voice session acceptance from the voice application to the voice communication system.

Abstract: A communication network comprises a first gateway, a second gateway, a soft switch, and an end device. The end device transmits a first test message to the first gateway and transmits a second test message to the second gateway. The first gateway receives the first test message and transmits a first response message responsive to the first test message. The second gateway receives the second test message and transmits a second response message responsive to the second test message. The end device receives the first response message, receives the second response message, processes the first response message and the second response message to determine a preferred gateway of the first gateway and the second gateway, generates an update message indicating the preferred gateway, and transmits the update message to the soft switch.

Abstract: A communication system including a call control system, a plurality of network nodes, and a gateway coupled to the call control system and coupled to the plurality of network nodes. The gateway is configured to interwork communications between the plurality of network nodes and, responsive to a first status change associated with a first network node of the plurality of network nodes, transfers a first update message to the call control system wherein the first update message indicates the gateway, the first status change, and the first network node. The call control system, responsive to receiving the first update message, processes the first update message to determine a first user associated with the first network node and to determine a first priority for the first update message based on the first user associated with the first network node.

Abstract: An update messaging system comprising a first interface configured to receive a first update message from a first gateway into a first location server wherein the first update message indicates a first type of message for the first update message, and a first processing system configured to determine a priority associated with the first update message based upon the first type of message for the first update message.

Abstract: An embodiment of the invention includes a network control system for a communication network comprising a first interface configured to receive an update message wherein the update message indicates a status change of a first gateway and wherein the first gateway provides an interface between a first network and a second network, and a processing system configured to update a routing table based upon the update message and a distance vector associated with the first gateway wherein the routing table comprises a Telephony Routing over Internet protocol (TRIP) routing table.

Abstract: A communication system comprising an end device, a location server, and a plurality of resources, each resource for providing individual instances of a first application. The end device is configured to transmit a first test message for the first application to a first resource of the plurality of resources using a first access method, receive a first response message from the first resource, process the first response message to determine first performance information for the first application, generate a first update message indicating the first performance information, and transmit the first update message to a location server.

Abstract: A method and system for facilitating calling within an enterprise network upon failure of a landline connection between the enterprise network and an outside call server such as an IP Centrex server. Upon failure of the landline connection, an enterprise router switches over to a backup wireless packet-data link, such as a 3G cellular link for instance. Thus, packet-based call signaling can continue to flow between the enterprise network and the call server so as to continue setting up inside calls between enterprise telephone stations. The backup wireless packet-data link can also be used to carry a limited extent of outside calls, such as emergency calls for instance.