Operation Manual

Appendix

Term Explanation

Personal CallBack

Feature allowing authorized callers to be called back by a Personal

CallBack Server. The caller is then granted a line on which he or

she can make calls that are charged to the telephone number of the

Personal CallBack Server.

Personal Identification Number. Special numerical code which

functions as a password.

Provider

Someone who offers services, such as Internet access, over public

telephone lines.

Pulse dialing

Older procedure for transmitting telephone numbers also known as

rotary dialing. This procedure can only support digits and not char-

acters like 



 (tone) or # (flash).

RJ-11 connector

Plug frequently used to attach analog devices. The plug is made of

clear plastic and has 4 contacts of which two are used for telephony.

RJ-45 connector

Plug used primarily for attaching ISDN devices. It is very similar in

appearance to the RJ-11 connector but larger and has 8 contacts of

which 4 are used for ISDN.

S/T interface

ISDN network terminator or ISDN basic rate interface. The ISDN

bus is attached to it. This is the 4-wire cable to attach your ISDN

devices.

Terminal Adapter. See T/R port.

T/R port

Tip&Ring. It is an analog port to ISDN that allows you to attach

your non-ISDN devices (telephone, modem, fax G3 etc.) to the

ISDN line. This either can be an external device or integrated into

the ISDN device itself. On TELES hardware the T/R ports are

sometimes labeled ‘AB’

TR port US standard

See T/R port. According to the US standard, the inner two wires of

the RJ-11 plug are used.