US Robotics COURIER Manual de usuario Pagina 288

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U.S. Robotics I-modem Command Reference
Glossary • Page G-30
Northern Telecom DMS-100
A make and model of central ofÞce switch. Before NI-1, AT&T and Northern Telecom
implemented proprietary protocols to handle ISDN calls. ThatÕs why itÕs important to
know whether an NT DMS-100 central ofÞce switch is using proprietary (often referred to
as simply DMS-100) or NI-1 call control signaling.
NT-1
Network Termination 1. A device that terminates the 2-wire U-interface line from the tele-
phone company and converts U-interface signals to S/T
-interface signals and vice versa.
NVRAM
See nonvolatile random access memory.
O
Online command mode
By entering Online command mode, you can send the I-modem commands while you are
online with another device.
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