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P/N 480-0049-00-13
Chapter 1: Overview
Figure 1-6
Data Network Call Routing
Routing Table Options
There are four types of routing databases you can configure: Bypass Directory Numbers (BPN),
Hunt Local Directory Numbers (Hunt LDN), Hop-Off Directory Numbers (HDN) and Static Routes.
Bypass Directory Numbers.
Bypass Directory Numbers (BDN) are telephone numbers that are
automatically routed directly from a line circuit to a trunk circuit (PSTN); they will not be routed
VoIP. Some examples of bypass numbers include toll-free calls, emergency calls (i.e., 911), or high
security calls.
Hunt Local Directory Numbers.
A Hunt Local Directory Number (Hunt LDN) is a
phone number
reachable through local Line Circuits.
Hop-Off Directory Number.
A Hop-off PBX call travels over IP, and then “hops” off into the pub-
lic network (PSTN) on the distant side to reduce or eliminate public toll charges (also known as
Leaky Area Map). A Hop-Off Directory Number is routed over the IP to another Tenor location and
then out to the Trunk circuit, possibly to the PSTN as a local call.
Static Routes
. Static Routes are used between networks and other H.323 devices that are not regis-
tered to the network through the Border Element (such as non-Quintum gateways). A static route
associates endpoints (as represented by their IP address) with Directory Number patterns.
Line
Circuits
Ethernet
PSTN B
Trunk
Circuits
Trunk
Circuits
PSTN A
Ethernet
(IP Network)
Tenor CMS
PBX
VOIP Call
Circuit
Call
Circuit
Call
R
POWER
ALERT
R
E
S
E
T
1
2
3
4
5
6
7
8
Line/Act
100
Line/Act
100
LAN 1 LAN 2
CONSOLE
D
I
A
G
Tenor DX
