摘要:
A mechanism controls global synchronization, or registration floods, that may result when a large number of endpoints in a Voice over Internet Protocol (VoIP) network such as an Internet Protocol Multimedia Subsystem (IMS) come online simultaneously after a catastrophic failure. The mechanism allows the Domain Name System (DNS) infrastructure to efficiently control the overload condition by registering user end points with backup border elements, and by staggering and by randomizing the time-to-live (TTL) parameter in registrations with backup border elements.
摘要:
A method includes receiving a message at a server. The message indicates that a network is unable to fulfill a request for media content for a user device. The method may also include sending, from the server to the user device, an offer to inform the user device when the network is able to fulfill the request.
摘要:
A system and method of sending subject line messages is provided. A particular method includes receiving a call setup signaling message. The call setup signaling message includes a message identifier. The method further includes determining a subject line message associated with the message identifier of the call setup signaling message. The message identifier is replaced with the subject line message. The method further includes transmitting the call setup signaling message to a called party.
摘要:
A system that incorporates teachings of the present disclosure may include, for example, a method for receiving initial filter criteria from a home subscriber server, transmitting information obtained from the initial filter criteria to a domain name system, receiving a multicast IP address from the domain name system, and transmitting a message to a plurality of IP multimedia subsystem network elements according to the multicast IP address. The message can be used for configuring the plurality of IP multimedia subsystem network elements. Other embodiments are disclosed.
摘要:
A system that incorporates teachings of the present disclosure may utilize, for example, a method involving receiving from a first communication device a service request while providing back-up services to an out-of-service network element, detecting a deficiency in call state information to process the service request, transmitting to the first communication device an error message that prevents termination of an active Internet Protocol (IP) communication path between the first communication device and a second communication device, and receiving from the first communication device a request for an alternate IP communication path for communicating between the first and second communication devices which resolves the deficiency in call state information. Additional embodiments are disclosed.
摘要:
In one embodiment, the present disclosure is a method and apparatus for dynamically controlling Internet Protocol packet flows in a Voice over Internet Protocol network. In one embodiment, a method for controlling flows of packets in a network includes obtaining a list identifying at least one user element that is authorized to register with the network and dynamically configuring a manner in which at least one border element handles the packets in accordance with the list.
摘要:
A method and apparatus for providing a repeat calling service feature in a communication network are disclosed. For example, the method captures call session information between a calling endpoint and a called endpoint of a failed call due to an unavailability of required network resource. The method then receives a repeat calling service request from the calling endpoint, and processes the repeat calling service request to reestablish a call between the calling endpoint and the called endpoint.
摘要:
A method and an apparatus for providing mobility for a Voice over Internet Protocol Service (VoIP) provided on packet networks are disclosed. For example, the method receives a register request from a user endpoint device and retrieves an Access Point-address parameter from a contact header in the register request. The method then determines a physical location of an access point device in accordance with the Access Point-address parameter and updates location information for the user endpoint device in accordance with the physical location of the access point device.
摘要:
System(s) and method(s) are provided for regulating interaction amongst an application layer and a control layer in a packet-based core network. A data structure is provisioned in a centralized repository; the data structure includes (i) at least one procedure for regulating interaction amongst a session control component within the control layer and application server within the application layer, and (ii) an identification (ID) field attribute that uniquely identifies the data structure. To regulate such interaction, the session control component acquires a set of provisioned data structures; acquisition is automatic and can be dictated, in part, by generation of a data structure, or modification of an existing data structure or an ID field attribute. Based at least on an ID field attribute retained in a subscriber service profile, the session control component references a data structure identified by the ID field attribute and implements one or more procedures retained in such data structure. Implementation of the one or more procedure regulates the interaction between the session control component and the application server.
摘要:
A system that incorporates teachings of the present disclosure may include, for example, an edge device having a controller to receive a Session Initiation Protocol (SIP) message from a user endpoint device (UE) requesting communication services, forward the SIP message to a network element of a Server Office, receive from the network element a first error message indicating communication services at the Server Office are unavailable, replace the first error message with a second error message, the second error message indicating a temporary unavailability of communication services, and transmit the second error message to the UE. Additional embodiments are disclosed.