I wonder why I no longer can send file or photo on Jabber. I used to be able to send files or photos, but now I cannot. The error message is "This screen capture could not be delivered". I do not recall changing any setting on IMP, but what is the "correct" implementation setting for this?
My CUCM version is 11.5 and Jabber version is 12.0.1 for Desktop and 12.5.1 for mobile phones. The setting on IMP for file transfer is Peer-to-Peer.
Are you or the other person connected over MRA by any chance? This is expected if you are connected over MRA and you don't have a separate server for Managed File Transfer.