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Chapter 3. Terminal Menu Operation and Structure
61200176L3-1 Express 4110/4120 User Manual 3-11
Dial Line/ExpertISDN
Write security: 2; Read security: 5
The ExpertISDN option allows automatic determination of Service
Profile Identifier (SPID) 1 and SPID 2 with entry of the Local Direc-
tory Number(s) (LDN(s)) and area code. Enter the 7-digit LDN in
LDN 1 and LDN 2 (if a second 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 “Log Mes-
sages” on page B-1 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 com-
pany representative. The Express 4110/4120 can be configured for
the following:
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 tele-
phone 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
4110/4120 uses the presence of SPID 1 to determine if the line is
LUCENT 5ESS
(def) LUCENT 5ESS© Custom
DMS-100
Northern Telecom DMS-100™ Custom
National ISDN1
National ISDN-1 (could be a NorTel,
LUCENT,or Siemens EWSD)
NEC
Nippon Electric Company Switch