Alcatel 060170-10, Руководство пользователя

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3 Network Dialing
Schemes
Introduction
This chapter contains information on selecting and configuring Alcatel VoIP Network Dialing
Schemes (AVNDS) which are used to translate dialed digits into IP addresses on the switch. At
least one dialing scheme must be configured to support a Voice over IP network.
The dialing scheme examples discussed in this chapter are daughtercard centric, and typi-
cally consist of two PBXs with corresponding voice switching daughtercards each connected
by one incoming only and one outgoing only trunk. In most cases the PBX is assumed to be
trunked to the North American PSTN (Public Switched Telephone Network); however, some
examples have voice daughtercards connected to the PSTN. It should be presumed also that
all calls going to the PSTN are directed by Telco Central Offices. The WAN links between the
switches (or some other device) are via the WSM or WSX modules which provide the ports,
e.g., T1, E1, for data communications. The voice daughtercards (VSD, VSB and VSA) provide
the telephony ports, e.g., T1, E1, Euro ISDN BRI, FXO and FXS for voice communications.
Except where specified otherwise, it should be assumed that the VoIP daughtercards used in
the examples are VSDs.
Variations to the dialing scheme configurations entail other likely scenarios in a VoIP
network, including the use of hunt groups, site prefixes, strip digits, fax over IP and caller ID.
Dialing schemes for special configurations, such as using VoIP in the switch with the
OmniPCX 4400, are provided as well. All dialing schemes can be used in OmniAccess 512
and Omni Switch/Router configurations.
To simplify the configuration process, a VSM (Voice Switching Module) partial text-based
ASCII configuration boot file (
vsmboot.asc
) has been created for each dialing scheme. Each
partial boot file contains the specific CLI commands needed to implement a selected dialing
scheme, and should be merged with the complete master boot file (
vsmboot_master.asc
),
modified accordingly and then installed on the switch. Refer to Chapter 4, “Setup and Installa-
tion,” for further details and an example boot file configuration. For specific details on the
VoIP text-based command line interface (CLI) commands relative to the boot files and dialing
schemes, see Chapter 5, “VoIP Commands”.
♦
Caution
♦
Companies using Alcatel’s VoIP feature are responsible
for programming and testing all dialing schemes to
reduce the likelihood or to eliminate the possibility of
toll fraud from the PSTN and Emergency 911 process-
ing.