| 摘要 |
Methods, computer programs and communications devices are provided. A method comprises: sending an invite signal from a first communication device to a second communication device. wherein the invite signal contains information about at least one file, or a part of at least one file, stored at the first communication device and available for peer-to-peer sharing; and receiving an ok signal from the second communication device at the first communication device, in response to the invite signal, wherein the ok signal contains information about at least one other file, or a part of at least one other file, stored at second communication device and available for peer-to-peer sharing.
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