Cisco 3521 Administrator's Manual page 105

Chapter 3 Configuring the Cisco IPVC 3500 Series Gateway
Table 3-12
Octet
Octet 3.1
Administrator's Guide for Cisco IPVC 3521 BRI Gateway, Cisco IPVC 3526 PRI Gateway, and Cisco IPVC 3540 PRI Gateway
OL-7995-01
Octet Field Functions
Configuring Gateway Settings
Function
Octet 3.1 is used to hold Numbering Plan
Identification (NPI) and Type of Network (TON)
values. The octet contains eight bits numbered
from 1 to 8 and from right to left, so that Bit 1 is
rightmost and Bit 8 is leftmost.
The bits contain binary values representing the
following functions:
Bits 1-4 = NPI
•
Bits 5-7 = TON
•
Bit 8 is always set to 1 when Octet 3.1 is used
•
and populated.
The Numbering Plan Identification (NPI)
Note
and Type of Network (TON) fields appear
in the Add ISDN Information Elements
dialog box
The standard NPI values are:
For an NPI setting of Unknown, the standard
•
integer value is 0 and the standard binary
value is 0.
For an NPI setting of ISDN/Public, the
•
standard integer value is 1 and the standard
binary value is 0001.
• For an NPI setting of Private, the standard
integer value is 9 and the standard binary
value is 1001.
The standard TON values are:
• For a TON setting of unknown, the standard
integer value is 0 and the standard binary
value is 0.
For a TON setting of International, the
•
standard integer value is 1 and the standard
binary value is 0001.
For a TON setting of National, the standard
•
integer value is 2 and the standard binary
value is 0010.
For a TON setting of Network, the standard
•
integer value is 3 and the standard binary
value is 0011.
For a TON setting of Local, the standard
•
integer value is 4 and the standard binary
value is 0100.
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