This packet is utilised by a Primary manager to deliver an upload start notification to a Secondary client.

This is the packet format

[ 0x1FD6 ][ Packet Data Length : 2 ][ Local UserName : N ][ 00 : 1 ][ UserID : ? ][ 00 : 1 ][ UserName : S ][ 00 : 1 ][ FileName : N ][ 00 : 1 ][ IP Address : 4 ][ TCP Port  : 2 ]

This packet is part of the firewalled transfer system and is sent when the other client has been notified that no  open port exists (Port 0 condition) via the Primary manager