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Chapter 5: Configuration
61202.086L1-1 ISU 512 User Manual 27
CONFIGURING NETWORK OPTIONS FOR DIAL OPERATION
This section describes how to configure the ISU 512 for Dial operation such as
Switch type, Call type, Terminal ID, Dial options, and Auto answer. To dial
calls over ISDN, the ISU 512 must be configured for Dial Line.
Switch Type
Find out what kind of ISDN switch the local CO is using by asking the tele-
phone administrator or the telephone company representative. Configure the
ISU 512 for either a Northern Telecom DMS-100
™
, AT&T 5ESS
®
CO switch, or
a switch conforming to the National ISDN-1 standard [usually an AT&T 5ESS,
NTI DMS-100, Siemens EWSD, or EuroISDN (CTR3 compliant)]. Outside of
North America, use the AT&T 5ESS, NEC, or EuroISDN switch selection.
Use the following menu path:
3=CONFIG
1=Netw. options
1=Dial Line
1=Switch Type
1=AT&T 5ESS (default)
2=DMS-100
3=NATIONAL ISDN 1
4=NEC Switch
5=EuroISDN (only available on the ISU 512 ST)
Call Type
The Call type can be configured four different ways, depending on the type of
service used.
Use the following menu to configure the call type:
3=CONFIG
1=Netw. options
1=Dial Line
2=Call type
1=Speech
2=Audio
3=Data 56Kbps
4=Data 64Kbps (default)