A collaborative phone-based file exchange technique that wirelessly synchronizes a user's work context with his or her mobile phone and makes this context readily available and sharable in collaborative situations. When the user is away from their desk, collaboration with others is possible by sharing/downloading between the mobile phone and a paired PC, which may be a colleague's computer or a meeting room workstation/computer. When the user returns to their office, any recently downloaded files are automatically synchronized back to their office PC.