C H A P T E R 4

Configuring Voice

This chapter explains how to configure voice interfaces and ports, which convert telephone voice signals for transmission over an IP network.

This chapter presents the following major topics:

Prerequisites, page 4-1

Configuring the Voice Interface, page 4-1

VoIP enables your Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM voice gateways to carry live voice traffic (for example, telephone calls and faxes) over an IP network. VoIP offers the following benefits:

Toll bypass

Unified voice and data trunking

Plain old telephone service (POTS)–Internet telephony gateways

For more information on understanding and configuring VoIP, see Configuring Voice over IP.

Prerequisites

Before you can configure your Cisco voice gateway to use VoIP, you must first do the following:

Establish a working IP network.

Implement a dial plan, including the following tasks:

Complete your company’s dial plan. That is, decide what patterns of dialed numbers will access what telephony endpoints.

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.

Configuring the Voice Interface

Whenever you install a new interface or want to change the configuration of an existing interface, you must configure the interface.

Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM Voice Gateways Software Configuration Guide

 

OL-16191-01

4-1

 

 

 

Page 29
Image 29
Cisco Systems VG204XM, VG202XM manual Prerequisites, Configuring the Voice Interface

VG202, VG204XM, VG204, VG202XM specifications

Cisco Systems has long been a leader in the realm of networking technology, providing innovative solutions for businesses of all sizes. Among its products, the Cisco VG202XM, VG204, VG204XM, and VG202 series stand out as vital components in voice gateway solutions for IP telephony applications.

The Cisco VG202XM and VG204 series are designed to facilitate the convergence of voice and data as businesses transition to VoIP (Voice over Internet Protocol). These voice gateways offer seamless integration with legacy telephony systems while enabling the deployment of advanced IP-based telephony features. They are particularly useful for organizations looking to preserve their existing investments in traditional telephony infrastructure while embracing modern communication technologies.

One of the main features of the VG202XM and VG204 series is their support for two-line interfaces, catering to varying deployment needs. The VG202 provides two FXS (Foreign Exchange Station) ports, which allow businesses to connect analog phones and fax machines directly. The VG204 enhances this capability by offering four FXS ports, accommodating larger user bases and providing more connections for local telephony equipment.

These gateways support an array of voice codecs and can handle up to 16 concurrent calls, ensuring high-quality voice communication in busy environments. Their integration with Cisco's Unified Communications Manager allows users to access a host of advanced telephony features such as call forwarding, voicemail, and conferencing.

On the technology front, the VG202XM and VG204 series support both SIP (Session Initiation Protocol) and H.323 protocols, making them versatile for varied network environments. They also offer advanced QoS (Quality of Service) capabilities, ensuring that voice traffic is prioritized over other types of data, which is essential in maintaining call clarity and reliability.

Additionally, the VG204XM variant adds built-in safety features, such as power over Ethernet (PoE), which eliminates the need for separate power supplies for connected devices. This not only streamlines deployment but also enhances the reliability of the voice system.

In terms of management, these devices are equipped with Cisco's user-friendly interface, which simplifies configuration and monitoring. They can be managed through various tools offered by Cisco, making it easier for IT departments to maintain and optimize their voice services.

Overall, the Cisco VG202XM, VG204, VG204XM, and VG202 series deliver robust, scalable, and reliable solutions for businesses aiming to leverage the benefits of voice gateways in their enterprise networks. These devices not only provide essential voice capabilities but also pave the way for future growth and integration in an increasingly digital world.