NetComm Gateway Series manual Vsp

TFTP	Trivial File Transfer Protocol. A protocol for file transfers, TFTP is easier to use than
	File Transfer Protocol (FTP) but not as capable or secure.
TTL	Time To Live A field in an IP packet that limits the life span of that packet. Originally
	meant as a time duration, the TTL is usually represented instead as a maximum
	hop count; each router that receives a packet decrements this field by one. When
	the TTL reaches zero, the packet is discarded.
twisted pair	The ordinary copper telephone wiring long used by telephone companies. It con-
	tains one or more wire pairs twisted together to reduce inductance and noise. Each
	telephone line uses one pair. In homes, it is most often installed with two pairs. For
	Ethernet LANs, a higher grade called Category 3 (CAT 3) is used for 10BASE-T net-
	works, and an even higher grade called Category 5 (CAT 5) is used for 100BASE-T
	networks. See also 10BASE-T, 100BASE-T, Ethernet.
upstream	The direction of data transmission from the user to the Internet.
USB	Universal Serial Bus A serial interface that lets you connect devices such as print-
	ers, scanners, etc. to your computer by simply plugging them in. The My ADSL
	Modem is equipped with a USB interface for connecting to a stand-alone PC.
VC	Virtual Circuit A connection from your ADSL router to your ISP.
VCI	Virtual Circuit Identifier Together with the Virtual Path Identifier (VPI), the VCI
	uniquely identifies a VC. Your ISP will tell you the VCI for each VC they provide. See
	also VC.
VPI	Virtual Path Identifier Together with the Virtual Circuit Identifier (VCI), the VPI
	uniquely identifies a VC. Your ISP will tell you the VPI for each VC they provide. See
	also VC.
VSP	VoIP Service provider
WAN	Wide Area Network Any network spread over a large geographical area, such as
	a country or continent. With respect to the My ADSL Modem, WAN refers to the
	Internet.
Web browser	A software program that uses Hyper-Text Transfer Protocol (HTTP) to download
	information from (and upload to) web sites, and displays the information, which
	may consist of text, graphic images, audio, or video, to the user. Web browsers
	use Hyper-Text Transfer Protocol (HTTP). Popular web browsers include Netscape
	Navigator and Microsoft Internet Explorer. See also HTTP, web site, WWW.
Web page	A web site file typically containing text, graphics and hyperlinks (cross-references)
	to the other pages on that web site, as well as to pages on other web sites. When a
	user accesses a web site, the first page that is displayed is called the Home page.
	See also hyperlink, web site.
Web site	A computer on the Internet that distributes information to (and gets information
	from) remote users through web browsers. A web site typically consists of web
	pages that contain text, graphics, and hyperlinks. See also hyperlink, web page.
WLAN	Wireless Local Area Network
WWW	World Wide Web Also called (the) Web. Collective term for all web sites anywhere in
	the world that can be accessed via the Internet.POTS A telephone line used
	for a standard phone-line and service will be referred to as POTS (=Plain Old
	Telephone Service)
SmartVoice Gateway(s) User Guide	89
YML832 Rev2