They focus primarily on the first such ARPANET device, the Private Line Interface (PLI). The album is the follow-up to Levert's debut album, "Private Line" (1991). The last party line was converted to "private line" service on October 30, 1989. Private line teleprinter circuits were not directly connected to switching equipment. A private line also formerly operated on the Atlantic coast. A later digital version of a private line is called "digital private line" (DPL). "Private Line" CCUs had a blank panel with no user controls or displays. One implementation of this system is by Motorola and is called Private Line, or PL. The telephone company switch is not involved in the process, making this a private line. A private line was laid for Queen Victoria on the Isle of Wight. Christus performed this song live, with the band Private Line, on November 28, 2007. An international private leased circuit (IPLC) functions as a point-to-point private line. The 26s have no private line and a wyfie may not join the gang. Each end-user gets a private line (or leased line) to a Frame Relay node.