If you're replacing a phone system where they wired the jacks in the wall with the white/orange pair as the middle pair, and you can't get to the jacks to rewire them because they're behind heavy desks, the Mod Swapper can save you both time and money!
If you can get to the jack, plug the Mod Swapper right into the wall, and plug the phone's mounting cord into the Mod Swapper. If you can't get to the jack, just plug the Mod Swapper into the back of the phone, and plug the mounting cord into the Mod Swapper.
Customized versions that swap other pairs, including 8 pin plugs and jacks, are available. Just tell us what you need!