Abstract: Visual content to be displayed on a display of a user device is received. Obfuscation data for obscuring the visual content is generated and the obscured visual content is displayed on the display. A request to stop obscuring the visual content is transmitted from the user device to a remote device, in response to a drag gesture detected at the user device. As the drag gesture is performed, the obfuscation data is modified to reduce a level of obfuscation applied to the visual content before the request has been accepted, so that the visual content remains obscured but with a lower level of obfuscation. If the request is subsequently accepted at the remote device, the display is controlled to stop obscuring the visual content, thereby rendering the visual content fully visible on the display.

Abstract: Visual content to be displayed on a display of a user device is received. Obfuscation data for obscuring the visual content is generated and the obscured visual content is displayed on the display. A request to stop obscuring the visual content is transmitted from the user device to a remote device, in response to a drag gesture detected at the user device. As the drag gesture is performed, the obfuscation data is modified to reduce a level of obfuscation applied to the visual content before the request has been accepted, so that the visual content remains obscured but with a lower level of obfuscation. If the request is subsequently accepted at the remote device, the display is controlled to stop obscuring the visual content, thereby rendering the visual content fully visible on the display.

Abstract: Visual content to be displayed on a display of a user device is received. Obfuscation data for obscuring the visual content is generated and the obscured visual content is displayed on the display. A request to stop obscuring the visual content is transmitted from the user device to a remote device, in response to a drag gesture detected at the user device. As the drag gesture is performed, the obfuscation data is modified to reduce a level of obfuscation applied to the visual content before the request has been accepted, so that the visual content remains obscured but with a lower level of obfuscation. If the request is subsequently accepted at the remote device, the display is controlled to stop obscuring the visual content, thereby rendering the visual content fully visible on the display.

Abstract: In a communication event via a network between a requesting user, operating a first user device, and a responding user, operating a second user device, each of the user devices captures a stream of audio data, transmits the captured stream of audio data to the other user device via the network for receiving thereat, and outputs, to its user, the audio stream received from the other user device. A video exchange function is initially suppressed for the communication event for both of the user devices. The first user device transmits to the second user device a request to stop suppressing video. If the responding user does not accept the request, the video exchange function continues to be suppressed for both of the user devices. If the responding user accepts the request, the video exchange function stops being suppressed for both of the user devices.

Abstract: In a communication event via a network between a requesting user, operating a first user device, and a responding user, operating a second user device, each of the user devices captures a stream of audio data, transmits the captured stream of audio data to the other user device via the network for receiving thereat, and outputs, to its user, the audio stream received from the other user device. A video exchange function is initially suppressed for the communication event for both of the user devices. The first user device transmits to the second user device a request to stop suppressing video. If the responding user does not accept the request, the video exchange function continues to be suppressed for both of the user devices. If the responding user accepts the request, the video exchange function stops being suppressed for both of the user devices.

Abstract: In a communication event via a network between a requesting user, operating a first user device, and a responding user, operating a second user device, each of the user devices captures a stream of audio data, transmits the captured stream of audio data to the other user device via the network for receiving thereat, and outputs, to its user, the audio stream received from the other user device. A video exchange function is initially suppressed for the communication event for both of the user devices. The first user device transmits to the second user device a request to stop suppressing video. If the responding user does not accept the request, the video exchange function continues to be suppressed for both of the user devices. If the responding user accepts the request, the video exchange function stops being suppressed for both of the user devices.