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Voice Configuration 8-1
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This chapter describes the telephony services and configuration of the Netopia 4700-Series Integrated Access
Devices (IADs) running Netopia Firmware Version 5.4.
This chapter covers the following topics:
■ “Introduction” on page 8-1
■ “Configuring the Voice Features” on page 8-2
Introduction
Netopia IADs provide small and medium sized businesses with a complete Centrex PBX system. It supports
voice call switching between the DSL link and eight local extensions. Call management features can include
distinctive ringing, intelligent call forwarding, Direct Inward Dial (DID), Caller ID, and hunt groups. Important key
system features such as call hold, call transfer, and call waiting are all supported.
Note: Since the Netopia IADs are Centrex-based, specific voice features available to you in Netopia Firmware
Version 5.4 will depend on the services for which you contract with your service provider.
Netopia Firmware Version 5.4 supports up to eight telephone extensions and up to eight derived voice lines.
The 4700-Series IAD family includes the Netopia data routing engine for any number of attached computers or
other network devices connected to a single 10/100 Ethernet port.
Key features include:
■ Fax/Modem: Configurable Voice port for incoming fax or modem calls. This is another term for echo
cancellation support.
■ Voice Gateway Interoperability: CopperCom, JetStream, Tollbridge TDSoft, Zhone, and Alcatel. General
Bandwidth support to follow in an upcoming firmware release.
Centrex is a simpler variation on the PBX. It is a PBX with all switching occurring at a local telephone office
instead of at the company's premises. Typically, the telephone company owns and manages all the
communications equipment necessary to implement the PBX and then sells various services to the company.
Explanation of terms
Some telephony terms mean different things in Centrex mode and PBX/local switching mode: Toll Restriction,
Speed Dial, and Distinctive Ringing. Netopia IADs operate in Centrex mode.
■ Toll Restriction Operation - Centrex Mode: When you pick up the phone, you receive a dial tone from the
central office. When 9 is pressed, the Netopia IAD detects 9 and returns a busy tone served by the Centrex
system accessible via the IAD. Incoming calls are allowed. This allows local extension calling through the