A method for generating a plurality of messages for inviting communication devices to a communication conference comprises: establishing a first communication conference with a plurality of first communication devices, receiving a plurality of communication device identifiers from a communication device participating in the first communication conference, which communication device identifiers identify the communication devices to be invited to at least a second communication conference, determining the communication devices from the plurality of the communication devices, which are already involved in the first communication conference, generating messages for inviting communication devices to a communication conference only for those communication devices which are not involved in another communication conference.

A IP telephony service allows customers to form user groups. Each user group can include multiple members, each of whom have their own telephony device. When a member of a user group sends an outgoing communication from one of the telephony devices associated with the user group, the service obtains communication handling instructions for the user group. The outgoing communication is then processed in accordance with the handling instructions. This could include sending copies of the outgoing communication to the telephony devices of other members of the user group. This could also include sending the outgoing communication with an origination identifier associated with the user group, rather than an origination identifier associated with the member's telephony device.

In a method for determining active communication sessions, a request to determine active communication sessions is received. Queries as to whether communication sessions are currently active are sent to at least two communication session servers. The respective query answers that indicate one or more active communication sessions being controlled by the respective communication server are received. A first answer that indicates one or more active communication sessions being controlled by the at least two respective communication servers is sent. A communication session information server executes the method.

In the field of pushing video, a method and electronic device for pushing a video between different clients are provided. The method for pushing a video includes: receiving an identifier of a to-be-pushed video and a to-be-pushed-to destination client and/or a client corresponding to a to-be-pushed-to destination account, where a source client that provides the identifier of the video is bound to the destination client, and/or a source account corresponding to the source client is bound to the destination account; and the identifier of the video is pushed to the destination client and/or the destination account. By means of embodiments of the present disclosure, a video can be pushed without depending on a network connection between clients, thereby improving flexibility of pushing video and enhancing user experience.

A method is provided for managing media in a Push-To-Talk (PTT) over Cellular (PoC) box in an aggregation proxy server for sending media to a PoC User Equipment (UE) in a PoC system. The aggregation proxy server receives a PoC session control data request message which is associated with media information stored in the PoC box from the PoC UE. The PoC session control data request message for requesting the media information stored in the PoC box, is sent to the PoC box. The media information is received from the PoC box in response to the PoC session control data request message, and the media information received from the PoC box is sent to the PoC UE. The media information includes a parameter related to media stored in the PoC box.

Embodiments of the present application disclose a method, device and storage medium for pushing information during a call. The method for pushing information during a call includes: obtaining a recommendation information group pre-uploaded to a server by a peer user before the call is answered or hung up; determining a recommendation information category to be recommended according to a real-time state of a mobile terminal of a local user; and selecting recommendation information for recommending from the recommendation information group according to the recommendation information category. By means of the method, device and storage medium for pushing information during a call provided in the embodiments of the present application, the information recommending forms during a call are diversified.

An embodiment of the present disclosure discloses a method and apparatus for controlling a play device to play a video, wherein the method includes: acquiring an IP address corresponding to the play device and a webpage pushing address by a mobile terminal through scanning a two-dimensional code displayed on the play device; loading a pushing webpage corresponding to the webpage pushing address by the mobile terminal, wherein the pushing webpage comprises a plurality of piece of video information; and acquiring a pushing request triggered specific to one piece of selected video information to be pushed and sending the pushing request to the play device according to the IP address, by the mobile terminal, so that the play device plays a video corresponding to the video information to be pushed according to the pushing request.

A system and method for relay-mode and direct-mode operations for Push-to-talk-over-Cellular (PoC) using WiFi technologies. One or more servers interface to a wireless communications network to perform advanced voice services for mobile units therein, wherein the advanced voice services include an instant two-way half-duplex voice call within a group of the mobile units comprising a PoC call session. Both the servers and the mobile units that use the advanced group services communicate with each other using control messages within the wireless communications network. At least one of the servers switches voice messages for the advanced group services between the mobile units across the wireless communications network. At least one of the servers manages the call session by acting as an arbitrator for the call session and by controlling the sending of the control messages and the voice messages to and from the mobile units. At least one of the mobile units performs Relay-Mode or Direct-Mode operations using WiFi communications for delivery of the control messages and the voice messages to and from others of the mobile units, thereby enabling the advanced voice services when access to the wireless communications network by the others of the mobile units is limited.

The disclosure is directed to synchronizing media sharing in a communication group. An embodiment transmits one or more media files to one or more members of the communication group, receives, after the transmitting, a selection of one of the one or more media files, and transmits, in response to the receiving, a request to start a group call with the one or more members of the communication group or a request to acquire the floor of the group call. An embodiment receives, at a user device, one or more media files from a member of the communication group, receives, after the receiving the one or more media files, a talk spurt from the member and a reference to one of the one or more media files, and displays the one of the one or more media file during the talk spurt.

When a push server receives a transmission request of push data from an application server, the push server transmits the push data to an in-vehicle communication device, and the in-vehicle communication device transmits the received push data to an in-vehicle ECU. The in-vehicle communication device includes a reset execution determination unit determining whether a reset of the in-vehicle communication device is executable and a reset state information notification unit notifying, in response to determining that the reset of the in-vehicle communication device is executable, the push server of reset state information indicating that the in-vehicle communication device is in a reset state, in association with device identification information of the in-vehicle communication device before starting the reset of the in-vehicle communication device. The device identification information enables identifying of the in-vehicle communication device.