: not prepared ahead of time : made or done without preparation. 1  Two of my friends came by unexpectedly, and we had an impromptu little party in my kitchen. 2  He made an impromptu speech about honor and responsibility.
Go to the existing phone jack and unscrew the cover of the jack with the screwdriver. Locate the four wires and attach each wire to its matching color. Step 6. Go to the location of the new phone jack. Attach the telephone wire to the terminals inside the phone jack. They are named red, green, yellow, and black. Attach the corresponding color to its match.
The cable pairs are color coded as shown: Each pair consists of a colored wire and a white wire with a matching color stripe. The stripe wire is tip and the solid color wire is ring, referring to the tip of the old 1/4 telephone plug and the ring around the shaft that makes the connections. Note: Plugs/jacks and punchdowns have different color codes!