| CPC H04L 51/04 (2013.01) [G06Q 30/0633 (2013.01); H04L 51/10 (2013.01)] | 10 Claims |

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1. A communications system, comprising:
a first electronic device; and
a second electronic device,
wherein the first electronic device is configured to:
play a first content of a first application,
display a first interface of the first application, wherein the first interface comprises a first option, the first application is a video application or an audio application, and the first content is a video or audio; and
send a link of the first content to the second electronic device by using a second application in response to an operation on the first option, wherein the second application is an instant messaging application;
wherein the second electronic device is configured to:
display a first dialog interface of a third application, wherein the first dialog interface comprises a first user identity and a second option, the second option is associated with the link of the first content, the first user identity is used to identify a first user operating the first electronic device, and the third application corresponds to the second application;
start a fourth application,
automatically adjust a playing progress of the video or audio on the second electronic device to be consistent with a playing progress of the video or audio on the first electronic device,
display a second interface of the fourth application in response to an operation on the second option, wherein the second interface comprises the first content and a third option, and the fourth application corresponds to the first application; and
send a first message, input by a second user operating the second electronic device, to the first electronic device by using the third application in response to an operation on the third option, wherein the first message is a text message, a voice message, a voice call request, or a video call request;
wherein the first electronic device is configured to:
adjust, in accordance with input by the first user, the playing progress of the video or audio on the first electronic device after displaying the first message; and
send first information indicating adjusting the playing progress of the video or audio on the first electronic device through the first application to the third application of the second electronic device; and
wherein the second electronic device is configured to:
send the first information through the third application to the fourth application; and
automatically adjust the playing progress of the video or audio on the second electronic device to be consistent with the adjusted playing progress of the video or audio on the first electronic device in response to the first information.
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