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(LDN(s)) and area code. Enter the 7-digit LDN in LDN 1 and LDN 2 (if a sec-
ond number exists). The area code must be entered. The message Auto Spid
Success will appear in the Call Log to indicate success in determining the
SPID. See Appendix B on page 121 for additional messages and their definitions.
Dial Line/Switch Protocol
Write security: 2; Read security: 5
Find out what kind of ISDN switch protocol the local CO is using by asking
the local telephone administrator or the telephone company representative.
The Express L128/L128T can be configured for the following:
LUCENT 5ESS (def)
DMS-100
National ISDN1
NEC
Dial Line/Area Code
Write security: 2; Read security: 5
Enter 3-digit area code when using ExpertISDN.
Dial Line/SPID 1
Write security: 2; Read security: 5
The SPID is a sequence of digits used to identify ISDN terminal equipment to
the ISDN switch. The SPID is assigned by the local phone company when the
ISDN line is installed and it usually looks similar to the phone number. Obtain
SPIDs from the telephone administrator or local telephone representative.
The number of SPIDs required (0, 1, or 2) depends on how your ISDN line is
configured. For instance, a point-to-point line has no SPID. Multipoint lines
may have one or two SPIDs. The Express L128/L128T uses the presence of
SPID 1 to determine if the line is multipoint. If the line has only one SPID, then
it must be entered in SPID 1.
National ISDN1 switches require the addition of a two-digit terminal identifier (TID)
at the end of the SPID.
61202.070L1-1
Chapter 3: Terminal Menu Operation and Structure
LUCENT 5ESS© Custom
Northern Telecom DMS-100™ Custom
National ISDN-1 (could be a NorTel,
LUCENT,or Siemens EWSD)
Nippon Electric Company Switch
SPID 1 =
0
1
SPID 2 =
0
1
Express L128/L128T User Manual
5
5
5
1
2
1
5
5
5
1
2
1
2
0
3
0
37
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