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G
LOSSARY
3
Firmware
Firmware is the code that resides in the 3C882 ISDN modem
and controls its behavior. It differs from software in the form
of programs that run on your computer.
ISDN
Integrated Services Digital Network. ISDN provides a digital
telephone service which allows both data and voice
communication over the same telephone line and at
significantly faster speeds than the traditional POTs service.
Two types of lines provide access to ISDN: BRI and PRI.
ISDN Call Logging
ISDN Call Logging displays the five latest incoming and
outgoing numbers over the data and analog ports. To use
this feature, your ISDN line must support Caller ID.
ISDN Call Waiting
ISDN Call Waiting is a supplementary voice feature that
allows you to place a voice call on hold while you answer an
incoming voice call. ISDN Call Waiting requires Additional Call
Offering (ACO) provisioned on your ISDN line.
Kbps
Kilobits per second. The rate at which data is transmitted
between communication equipment such as ISDN modems.
Layer 1
In ISDN communications, the physical layer of
communications between the communication equipment. If
layer 1 is down, there is no ISDN connection between the
devices. The status bar in the 3C882 ISDN modem
Configuration screen indicates layer 1 status.
Multilink PPP
A protocol that provides a method for combining multiple PPP
connections. With a BRI line, Multilink PPP aggregates the two
56 Kbps or 64 Kbps ISDN B channels, creating a virtual single
digital connection of up to 128 Kbps.
Summary of Contents for 3COMIMPACT IQ
Page 1: ... 3COMIMPACT IQ EXTERNAL ISDN MODEM USER GUIDE Part No 09 0885 001 Published July 1997 ...
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Page 64: ...3 34 CHAPTER 3 CONFIGURATION FOR AN IBM COMPATIBLE PC RUNNING WINDOWS ...
Page 90: ...5 6 CHAPTER 5 ADVANCED CONFIGURATION ...
Page 132: ...B 10 APPENDIX B AT COMMANDS S REGISTERS AND RESULT CODES ...
Page 136: ...C 4 APPENDIX C SPECIFICATIONS ...
Page 140: ...D 4 APPENDIX D CONFIGURATION USING DOS ...
Page 146: ...6 GLOSSARY ...
Page 153: ...Windows NT 3 5 1 3 17 Windows NT 4 0 3 20 ...
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