A terminal device including: a communicator configured establish a phone call with another terminal device having a remote control right to an external device, and to receive state information of the external device from the another terminal device; a display configured to display a mirroring screen corresponding to a screen displayed on the external device based on the received state information; and a controller configured to, in response to a user manipulation command being input on the mirroring screen, transmit a control command for the external device corresponding to the input user manipulation command to the another terminal device.

A method for managing an unallocated telephone number in a communication network, the telephone number being previously allocated to a user of the communication network until a suspension date. The method is implemented by an item of equipment of the network and includes: obtaining information relating to a call set-up request received by the communication network to the telephone number during an observation period of time subsequent to the suspension date; updating, according to the information relating to the call set-up request, information relating to an activity level of the telephone number in the communication network, the information relating to an activity level being representative of a number of requests to set-up a call to the telephone number received by the network for the given observation period and storing in a data table the information relating to an activity level of the telephone number in association with the telephone number.

A device is configured to detect congestion and throttle phone calls in a telephone communication system. The device is configure to receive, from a telephone dialing system, an indication indicating a call failure to a phone number; determine that the phone number matches a flooding group number based on initial digits of the phone number, the flooding group number associated with a flooding group, the flooding group including a plurality of phone numbers with initial digits having identical values to the flooding group number; determine a time of the call failure and a number of concurrent active calls for the flooding group at the time of the call failure; and in response to the number of concurrent active calls at the time of the call failure exceeding a predefined threshold, update a capacity limit for the flooding group based on the number of concurrent active calls.

A device is configured to detect congestion and throttle phone calls in a telephone communication system. The device is configure to receive, from a telephone dialing system, an indication indicating a call failure to a phone number; determine that the phone number matches a flooding group number based on initial digits of the phone number, the flooding group number associated with a flooding group, the flooding group including a plurality of phone numbers with initial digits having identical values to the flooding group number; determine a time of the call failure and a number of concurrent active calls for the flooding group at the time of the call failure; and in response to the number of concurrent active calls at the time of the call failure exceeding a predefined threshold, update a capacity limit for the flooding group based on the number of concurrent active calls.

Service failure information can be quickly and accurately disseminated to appropriate targets. A service failure information dissemination system 1 receives alarm information notifying that a failure has occurred in a service or a device for providing a service and related information that relates to the alarm information, obtains the degree of influence of the failure for each service type based on the alarm information and the related information, determines a dissemination target and a dissemination means of failure information based on the degree of influence, creates failure information according to the dissemination means, and disseminates the failure information to the dissemination target through the dissemination means.

A method of establishing a communication path between a first terminal and a second terminal, the method including receiving a first call from the first terminal; answering the first call; generating a call establishment request (CER); establishing a second call to the second terminal; forwarding the CER to the second terminal; receiving an acknowledgement from the second terminal; and connecting the first call and the second call.

There is provided an information processing system that includes a communication unit that acquires act information indicating occurrence of a first act from a first user to a second user, an accumulation unit that accumulates at least a user who has performed the act, a user influenced by the act, and a type of the act in units of acts in order of occurrence of the acts, and a control unit that performs control, when a second act determined to have influenced the first act is found from among acts that are accumulated in the accumulation unit and from which the first user has received influence in past, to record the first act and the second act in association with each other in the accumulation unit.

There is provided an information processing system that includes a communication unit that acquires act information indicating occurrence of a first act from a first user to a second user, an accumulation unit that accumulates at least a user who has performed the act, a user influenced by the act, and a type of the act in units of acts in order of occurrence of the acts, and a control unit that performs control, when a second act determined to have influenced the first act is found from among acts that are accumulated in the accumulation unit and from which the first user has received influence in past, to record the first act and the second act in association with each other in the accumulation unit.

Service failure information can be quickly and accurately disseminated to appropriate targets. A service failure information dissemination system 1 receives alarm information notifying that a failure has occurred in a service or a device for providing a service and related information that relates to the alarm information, obtains the degree of influence of the failure for each service type based on the alarm information and the related information, determines a dissemination target and a dissemination means of failure information based on the degree of influence, creates failure information according to the dissemination means, and disseminates the failure information to the dissemination target through the dissemination means.

There is provided an information processing system that includes a communication unit that acquires act information indicating occurrence of a first act from a first user to a second user, an accumulation unit that accumulates at least a user who has performed the act, a user influenced by the act, and a type of the act in units of acts in order of occurrence of the acts, and a control unit that performs control, when a second act determined to have influenced the first act is found from among acts that are accumulated in the accumulation unit and from which the first user has received influence in past, to record the first act and the second act in association with each other in the accumulation unit.