This is what I found, now looking for FW3.1.17 or 3.1.19!
First, go to www.sipura.com/support and download and install the latest version of the basic (non-SE) firmware. That will upgrade your one-line firmware to the newest version. Next, go back and download the same-numbered SE firmware and install that. The SE firmware is really a second-line expansion pack. You will now have the latest, greatest two line SPA-1001.
