I have two phone lines wired to a single phone jack in my home. However, the SupraSonic II provides a jack that can be connected directly to the 2-line wall jack. Shotgun provides all-around performance. Shotgun technology utilizes the connection speeds the modems negotiate with the ISP server, regardless of the protocol. Since Diamond modems use K56flex today and are flash upgradeable to the upcoming V.90 standard, users will get the highest performance when connecting to ISPs using those protocols.
Shotgun technology utilizes bandwidth on demand.
First seen in Diamond's NetCommander ISDN card, the second phone line is added only when the first line is used to its maximum. Settings in the Shotgun application allow the user to determine how long to wait before adding or dropping the second connection. I currently have a modem that uses x2 technology, but I want to access the Internet faster. Assuming both modems are eventually flash-upgraded to a V.90 protocol and the ISP is also V.90 compatible, the maximum data connection speed would increase to 112Kbps. Shotgun improves delays in receiving data from the Internet when the modem connection is the bottleneck.