The processing of a call between at least two terminals via a network is disclosed, where a videoconference session between the terminals being in process, and network conditions being likely to degrade the quality of a videoconference call between the terminals. A server then implements the following: upon receipt of a first message from the server about degradation of the videoconference call quality, the first message originating from at least one the terminals and comprising identifiers in the network of the terminals, interrupting the videoconference call, and using the identifiers of the terminals to transmit a second message to the terminals about linking the terminals in the form of an audio call, the second message comprising an instruction to prevent a human-machine interface for notifying of an incoming call from executing.

Telecommunications network components configured to manage call control of a communication session of user equipment are described herein. An anchoring network device may proxy signaling traffic for the communication session. The anchoring network device may determine a routing identifier based at least in part on which access network, or which type of access network, is carrying the communication session, and may transmit state information of the communication session to a call-control server in association with the routing identifier. The call-control server may provide control information of the communication session to the anchoring network device in response to the state information. The anchoring network device may modify the communication session, e.g., by adding or dropping one or more parties, in response to the control information. The routing identifier may be determined based at least in part on capabilities of a communication session indicated in a session-initiation message.

The present invention provides methods, apparatus and systems for improving a systems-level data rate on a communications link such as the orthogonal frequency division multiplexed multiple access (OFDMA) downlink used in WiFi and LTE cellular/wireless mobile data applications. The present invention preferably uses a form of multilevel coding and decoding known as tiled-building-block encoding/decoding. With the present invention, different receivers coupled to different parallel downlink channels with different channel qualities decode different received signal constellations at different levels of resolution. This allows the downlink of the OFDMA system to operate with a significantly higher data rate, thus eliminating existing inefficiencies in the downlink and significantly increasing system level bandwidth efficiency.

A system described herein may provide a technique for the seamless failover of devices in a network, such as a wireless telecommunications network. For example, embodiments may identify a particular device, such as a Call Session Control Function (“CSCF”), that has failed or that does not meet particular performance metrics. An Internet Protocol (“IP”) address of the failed device may be assigned to a functioning device of the same type (e.g., another CSCF). The functioning device may be instructed, in accordance with some embodiments, to output routes between itself and other devices or IP addresses, based on which traffic originally intended for the failed device may be routed to the functioning device.

According to various embodiments, an electronic device may include at least one antenna module; and at least one processor configured to receive a communication service from a first communication network, a second communication network, and an IP multimedia subsystem (IMS) network via the at least one antenna module, wherein the at least one processor may be configured to: access the first communication network based on first identification information which corresponds to the first communication network, via the accessed first communication network, based on second identification information which corresponds to the IMS network, request the IMS network to register the electronic device, if registration request to the IMS network fails, access the second communication network, and request the IMS network to register the electronic device via the second communication network. Other various embodiments are possible.

Methods and apparatus for improving caller identification in telecommunications services based on general-purpose networks are described. A gateway device may process invitation messages sent from a telephone via a private branch exchange, in which the private branch exchange has replaced the number of the telephone with a customized number. The gateway device may determine that the customized number is mapped to an account-related number, and insert that number into a field of the invitation messages that is examined by a telecommunications provider and associated trunking services for account-related purposes.

Methods and systems are disclosed for supporting delay budget information in IMS systems. Requests for DBI are received by a first node, contained within a SIP message. This can be achieved by filling a feedback field within the signal with a delay budget indicator. The first node analyzes the received signal in order to determine whether DBI is being requested. Based on this analysis, a request signal is forwarded to a second node, which carries out resource reservation. The request signal can be based on a H.248:Add.req message. In this manner, DBI can be signaled and supported even without dedicated DBI messaging.

At least one server (11) communicates with one or more applications running on each of wireless terminals (2) through one or more communication paths provided by a cellular communication network (3). The at least one server (11) determines a QoS parameter to be applied by the cellular communication network (3) to each communication path, based on one or any combination of a priority associated with each application, a priority associated with each wireless terminal (2), and a priority associated with an organization to which the wireless terminals (2) belong. The at least one server (11) communicates with a node in the cellular communication network (3) to enforce the determined QoS parameter on the corresponding communication path. This, for example, allows priority handling regarding a public safety service to be reflected in a QoS parameter of a cellular communication network.

This application provides an interaction information transmission method and apparatus. The method includes: receiving, by a calling terminal from an RBT-AS, an SDP message including interaction information related to a video ring back tone; receiving, by the calling terminal from the RBT-MRS, a video ring back tone media stream including the video ring back tone; and playing, by the calling terminal, the video ring back tone in a display interface, and displaying interaction content related to the interaction information. Since the RBT-AS configures the interaction information into the SDP message and sends the SDP message to the calling terminal, the calling terminal does not need to perform decoding and can directly obtain the interaction information and the RBT-AS does not need to encode the interaction information either. Therefore, encoding and decoding processes are not required at a transmit end and a receive end respectively, avoiding extra processing overheads.

In one embodiment, the method of processing telephony sessions includes: communicating with an application server using an application layer protocol; processing telephony instructions with a call router; and creating call router resources accessible through a call router Application Programming Interface (API). In another embodiment, the system for processing telephony sessions includes: a call router, a URI for an application server, a telephony instruction executed by the call router, and a call router API resource.