User guide

Configuring the SCOPIA Gateway 137
Configuring Port Settings
box. System administrators can either select any of the pre-configured NSF
settings, or choose to configure their own NSF Information Element using
service provider information.
You can specify the following information in the NSF:
 The service providers with which you want their network to work.
 The specific network plan and equipment with which you want your
network to work (for example, switches and bandwidth).
 The specific services available to their network (for example,1-800
phone numbers).
Instructions are contained in the NSF IE fields of outgoing Q.931 setup messages
in the format shown in Figure 3-4.
Figure 3-4 Network Specific Facility Information Element Format
NSF Information Elements contain a number of configurable Octet fields. The
values entered in these fields represent instructions contained in outgoing Q.931
Setup messages. Figure 3-4 represents the format of such instructions. Table 3-22
describes the function of each of the Octet fields.
Network Specific Facilities
Information Element identifier
Length of network specific facilities contents
Length of network identification
1
ext
0
spare
Parameterized/
Binary
0
spare
Type of network identification Network identification plan
Network Identification (IA5 characters)
1
Exp
Feature/
Service
87654321
01000000
Facility coding value
Parameterized Field
Octet 1
Octet 2
Octet 3
Octet 3.1
Octet 3.2
Octet 4
Octet 5