Cisco Systems VG204XM, VG202XM manual About the Voice Gateways, Port Numbering Conventions

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C H A P T E R 1

Understanding Interface Numbering and

Cisco IOS Software Basics

•About the Voice Gateways, page 1-1

•Port Numbering Conventions, page 1-1

•Understanding Cisco IOS Software Basics, page 1-3

•Typical Voice Gateway Deployment Scenario, page 1-6

•Where to Go Next, page 1-6

About the Voice Gateways

Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM voice gateways deliver analog voice gateways for the service provider as well as commercial and enterprise unified communication markets. These voice gateways provide voice connectivity to devices such as analog phones, fax machines, and modems.

Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM voice gateways provide support for 2-FXS (Cisco VG202 and Cisco VG202XM) and 4-FXS (Cisco VG204 and Cisco VG204XM) ports, each supporting independent telephone numbers giving you two or four separate lines, and parity with Cisco IOS fax/modem, security, and Session Initiation Protocol (SIP) features. Both voice gateways are configurable with Cisco Unified Communications Manager (CUCM) & Cisco Unified Communications Manager Express (CUCME).

Note Cisco VG202, Cisco VG202XM, Cisco VG204, and Cisco VG204XM voice gateways are fixed voice gateways and do not support interface cards.

Port Numbering Conventions

The Cisco VG202 voice gateway supports two RJ-11 ports and supports two FXS voice ports with two 10/100 Fast Ethernet ports. Figure 1-1shows the interfaces and ports on the Cisco VG202 voice gateway. All interface ports are on the back of the chassis.

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

 

OL-16191-01

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Contents Text Part Number OL-16191-01 Americas HeadquartersCopyright 2008-2013 Cisco Systems, Inc. All rights reserved N T E N T S Changing the Configuration Register Manually A-5 Audience Document ObjectivesDocumentation Conventions AccessibilityConvention Description Boldface fontCisco VG200 Series Gateways Related DocumentationViii Port Numbering Conventions About the Voice GatewaysBack Panel Feature Locations on the Cisco VG202 Chassis About Cisco IOS Software Understanding Cisco IOS Software BasicsChapter before you proceed to the next chapter ReleaseCommand Mode Access Method VG Prompt Displayed Exit Method Command ModesGetting Help Exit , or logoutSaving Configuration Changes Undoing a Command or FeatureConfigure terminal Interface fast ethernetWhere to Go Next Typical Voice Gateway Deployment ScenarioUpgrading to a New Cisco IOS Release Page OL-16191-01 About Configuring Your Voice Gateway Preparing to Configure Your Cisco Voice GatewayProcedure Determine the addressing plan for each network protocol Using the setup CommandEnter a hostname for the voice gateway Enter hostname VG VG204 Completing the Configuration OL-16191-01 Configuring the Hostname and Password Configuration guide and command reference publicationsRestriction Command or Action Purpose Verifying the Hostname and PasswordExit ExampleConfiguring Fast Ethernet Interfaces Enable Configure terminal Ip routingBefore You Begin Exit Ctrl-z Enable Copy running-config startup-config Ctrl-z Saving Configuration ChangesSaves the configuration changes to Nvram so that they Are not lost during resets, power cycles, or powerOL-16191-01 Prerequisites Configuring the Voice InterfacePrompt changes to the privileged Exec enable prompt VG# Auto-Configuration With a Dhcp Server Restriction for Configuring Auto-ConfigurationIp address dhcp Enable Configure terminalAuto-Configuration Without a Dhcp Server Voice service voip Fax protocol t38 nseforceCcm-manager config server tftpipaddress Ccm-manager sccp Downloads Cucm XML configuration files and enables Enables the Sccp and its related applicationsConfiguration port Transcoding and conferencingSccp Sccp ccm group group-number Enables Cucm auto-configuration of the Cisco IOSDial-peer voice tags pots Service stcapp Command or Action Purpose Last Three Digits of the MAC Configuring the MAC Address ConventionPort Number Address 000 001 002 003Enters privileged Exec mode Configuring CallsEnters global configuration mode. You have entered Global configuration mode when the prompt changes toCall Waiting Three-Party ConferencingCaller ID Caller-id enable type Caller-id enable type ExitAllows the sending or receiving of caller ID information OL-16191-01 Enable Configure terminal Config-register value Exit Reload Entering the ROM Monitor ModeAbout the ROM Monitor Commands Command Descriptions Listing the ROM Monitor CommandsCommand Description Recovering Boot and System ImagesReset or MeminfoAbout Changing the Configuration Register Using the Configuration RegisterChanging the Configuration Register Manually Changing the Configuration Register Using PromptsUsing the Console Download Function Command DescriptionAbout the Console Download Function Using Debug Commands Error ReportingContext-Displays processor context for example Rommon 9 meminfo Main memory size 128 MB Exiting the ROM Monitor ModeFigures Meminfo A-8reset A-4Reset command ROM monitor Commands Debug commands
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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.
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