[Standards] Call for Experience: XEP-0066: Out of Band Data

Christian Schudt christian.schudt at gmx.de
Thu Mar 8 09:25:34 UTC 2018


> However I'm not really sure what the intended purpose of this XEP is
> and if we still have a use case for that purpose.

I understood the purpose as follows:

a) You upload some file to a server (nowadays you could also use XEP-363).
b) You send a message to a contact with XEP-0066.
c) Contact downloads the uploaded file.

The advantage over SI File Transfer is that a file can be sent also in offline case.

The end user experience should be the same for all methods of file transfer (SI, Jingle, OOB):
- Inform the receiver about an incoming file.
- Receiver can choose to accept it.
- It should be transparent to the user, if the sender used SI, Jingle or OOB, e.g. if the file is streamed from an URL (XEP-0066) or from the sender directly.

TL;DR: The purpose is/was to transfer files in case the receiver is offline.

-- Christian


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