An ISDN standard to create consistency in ISDN service features
across different vendors’ equipment and switches for North America.
Network Terminator (NT1)
A device that terminates the ISDN line. The NT1 is built into your
ISDN TA.
PAP
Password Authentication Protocol. An authentication protocol that
requests information to verify a valid user. PAP requests the user’s
name and password for verification.
PPP
Point-to-Point Protocol. Provides a standard method of transmitting
data over the Internet. PPP is used for communication between a
computer and an Internet Service Provider.
PRI
Primary Rate Interface. One of two access methods to the ISDN. In
North America, each PRI consists of 23 64-Kbps B-channels and one
64-Kbps D-channel.
QuickSelect
Automatically detects and uses the protocol required for a digital call.
SPID
Service Profile Identifier. If required, this number is supplied to you by
the telephone company. Typically, if your ISDN line has only one
telephone number, a SPID is not required.
SPID Wizard
Using your ISDN TA’s telephone numbers, SPID Wizard automatically
detects the type of ISDN switch that your TA is connected to and
determines the Service Profile IDs.
TollMizer
Allows you to place a data call over a voice channel, saving the extra
cost of the data channel. Your telephone company, ISP, and the device
into which you are calling must all support this feature.
V.120
A rate adaption scheme that converts transmission rates from a range of
300 bps to 115.2 Kbps to the B-channel’s 56 Kbps or 64 Kbps rate.
V.120 is used for communication between two computers.