Quintum Technologies Tenor AX - Manual (Page 21)

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Chapter 1: Overview
Advanced Features/Capabilities
Call Management
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 the 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.
Dial Plan Options
Public/Private Dial Plan Support.The Tenor AX supports public and private dial plans. A public
dial plan includes numbers which conform to the international dialing plan (E.164) of a country
code + city/area code + local number. For a public dial plan, you can define the numbering plan
structure for the Tenor AX to use for outgoing calls.
A private dial plan does not conform to a public dialing plan (i.e., 3 digit dialing plan); through the
Tenor AX you are able to configure the unique pattern/dialing plan structure, including number
length.
You are able to configure which dial plan to use for incoming and outgoing calls, including whether
other options such as hop-off calls, will use a public or private dial plan.
User Programmable Dial Plan Support. The User Programmable Dial Plan Support (UPDP)
enables the Tenor to identify a completely customizable set of digit sequences, such as Local,
National, International or Private Numbers.
PassThrough support for certain call types. Certain call types can be directly routed to a trunk
circuit, without going IP. There are several routing tables you can configure through the Tenor Con-
figuration Manager to adjust how the Tenor AX unit routes these types of “pass through” numbers.
For example, you may want to configure 911 as a “bypass number”, which means that all 911 calls
coming into Tenor AX from the line circuit will be routed directly to a Trunk circuit presumably con-
nected to a PSTN. Bypass calls are never routed over IP.