Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user device may retrieve, from a server, an indication of a current device state of the user device. The user device may disable communication capabilities of the user device in connection with a determination that the current device state is a first device state of a plurality of device states. Numerous other aspects are described.

Abstract: Disclosed is a mobile device to authenticate a user. The mobile device may comprise: a first sensor; a second sensor to use more power than the first sensor; and a processor coupled to the first sensor and the second sensor. The processor may be configured to: collect data from the first sensor; determine if an environmental change occurred based on the collected data from the first sensor; engage the second sensor to collect data if the environmental change occurred; and modify a polling rate for the second sensor based on the collected data from the second sensor.

Abstract: Disclosed is a mobile device to authenticate a user. The mobile device may comprise: a first sensor; a second sensor to use more power than the first sensor; and a processor coupled to the first sensor and the second sensor. The processor may be configured to: collect data from the first sensor; determine if an environmental change occurred based on the collected data from the first sensor; engage the second sensor to collect data if the environmental change occurred; and modify a polling rate for the second sensor based on the collected data from the second sensor.

Abstract: 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.

Abstract: 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.

Abstract: Implementations relate to generating an operator, device, and platform-independent aggregation, cross-platform translation, enablement, and distribution of user activity catalogs. Users of a cellular telephone, a personal computer, or other devices or services can register to a database that collects transaction and other activity for the user. The user can designate one or more groups of users with whom to share collective activity data. The activity feeds can include recommendations, transactions, and other information generated when group members conduct retail or other activity. In one example, the activity feeds transmitted can be automatically translated and configured based on service operator and/or recipient device type. In another example, a user visiting a Website can be presented with a context-sensitive drop-down list of transactions conducted at that site by members of user's designated group(s) in the past.

Abstract: The disclosure is directed to requesting and providing acknowledgements to a talk spurt in a group communication. An embodiment transmits the talk spurt to one or more recipients participating in the group communication, receives a selection of one or more target recipients among the one or more participating recipients, and transmits a request to each of the one or more target recipients to acknowledge the talk spurt. An embodiment receives, at a mobile device, a talk spurt during the group communication, receives, at the mobile device, a request to acknowledge the talk spurt, and transmits, by the mobile device, an acknowledgement (ACK) or a negative acknowledgement (NACK) in response to the request without obtaining the floor of the group communication.

Abstract: 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.

Abstract: The disclosure is directed to requesting and providing acknowledgements to a talk spurt in a group communication. An embodiment transmits the talk spurt to one or more recipients participating in the group communication, receives a selection of one or more target recipients among the one or more participating recipients, and transmits a request to each of the one or more target recipients to acknowledge the talk spurt. An embodiment receives, at a mobile device, a talk spurt during the group communication, receives, at the mobile device, a request to acknowledge the talk spurt, and transmits, by the mobile device, an acknowledgement (ACK) or a negative acknowledgement (NACK) in response to the request without obtaining the floor of the group communication.

Abstract: Implementations relate to generating an operator, device, and platform-independent aggregation, cross-platform translation, enablement, and distribution of user activity catalogs. Users of a cellular telephone, a personal computer, or other devices or services can register to a database that collects transaction and other activity for the user. The user can designate one or more groups of users with whom to share collective activity data. The activity feeds can include recommendations, transactions, and other information generated when group members conduct retail or other activity. In one example, the activity feeds transmitted can be automatically translated and configured based on service operator and/or recipient device type. In another example, a user visiting a Website can be presented with a context-sensitive drop-down list of transactions conducted at that site by members of user's designated group(s) in the past.