Specifications

List of Terms

Voice over IP for the Cisco AS5300 5

Prerequisites

Before you can conﬁgure your Cisco AS5300 to use Voice over IP, you must ﬁrst do the following:

• Establish a working IP network. For more information about conﬁguring IP, refer to the

“IP Overview,” “Conﬁguring IP Addressing,” and “Conﬁguring IP Services” chapters in the

Cisco IOS 12.0 Network Protocols Conﬁguration Guide, Part 1.

• Complete basic conﬁguration for the AS5300, which includes, as a minimum, the following

tasks:

— Conﬁgure a host name and password for the AS5300

— Conﬁgure the Ethernet 10BaseT/100BaseT interface of your AS5300 so that it can be

recognized as a device on the Ethernet LAN

— Conﬁgure the AS5300 interfaces for ISDN PRI lines

— Conﬁgure the ISDN D channels for each ISDN PRI line

For more information about any of the these conﬁguration tasks, refer to the Cisco AS5300

Universal Access Server Software Conﬁguration Guide.

• Install the VFC into the appropriate slot of your Cisco AS5300 access server. Each VFC can hold

up to ﬁve digital signal processor modules (DSPMs), enabling processing for up to 30 B

channels. For more information about the physical characteristics of the VFCs or DSPMs, or how

to install them, refer to Installing Voice over IP Feature Cards in Cisco AS5300 Universal Access

Servers, which came with your VFC.

• Complete your company’s dial plan.

• Establish a working telephony network based on your company’s dial plan.

• Integrate your dial plan and telephony network into your existing IP network topology. Merging

your IP and telephony networks depends on your particular IP and telephony network topology.

In general, Cisco recommends the following suggestions:

— Use canonical numbers wherever possible. It is important to avoid situations where

numbering systems are signiﬁcantly different on different routers or access servers in your

network.

— Make routing and dialing transparent to the user—for example, avoid secondary dial tones

from secondary switches, where possible.

— Contact your PBX vendor for instructions about how to reconﬁgure the appropriate PBX

interfaces.

Supported MIBs and RFCs

This feature supports the following MIBs:

• CISCO-ANALOG-VOICE-IF-MIB

• CISCO-VOICE-DIAL-CONTROL-MIB

• CISCO-VOICE-IF-MIB

For descriptions of supported MIBs and how to use MIBs, see Cisco’s MIB Web site on CCO at

http://www.cisco.com/public/sw-center/netmgmt/cmtk/mibs.shtml.