Cisco Systems 1760 quick start Use the CLI to Configure VoIP, Information for International Users

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10Use the CLI to Configure VoIP

The following sections explain how to set up basic VoIP configurations using the Cisco IOS command line interface (CLI).

Note VoIP requires one of the IP/Plus/Voice feature sets from IOS Release 12.2(2)XK, or later.

Information for International Users

Saving the Configuration

Configuring the Fast Ethernet Interface

Configuring a Dial Plan

Configuring Voice Interface Cards

Configuring Quality of Service

IP Precedence

Low Latency Queuing

Multilink PPP with Link Fragmentation Interleave

Real-Time Transport Protocol Header Compression

Frame Relay Configuration for VoIP

Information for International Users

International users must set the values of certain voice-port commands, such as cptone, that are specific to their country. Refer to the Cisco 1751 Router Software Configuration Guide, available on Cisco.com, for details.

The rest of this guide explains how to configure your router for VoIP traffic.

Saving the Configuration

You must save the new configuration to nonvolatile RAM (NVRAM) periodically during the configuration process and also when you finish configuring the router.

Cisco IOS software uses two configuration files—startup-config and running-config. The startup-config file is a backup file that has all the information you specified about the router interfaces. The startup-config file is used by the router on the next restart. The running-config file has the current operating configuration with the changes you have just made. You can make any changes to the running-config file; however, these changes will be lost when the router powers down. To make these changes permanent, copy the running-config file to the startup-config file stored in NVRAM.

Follow these steps for each router to write the new configuration to NVRAM:

Step 1 Exit configuration mode, and return to the enable prompt by pressing Ctrl-Zor entering the end global configuration command.

Step 2 To see the startup configuration stored in NVRAM, enter the following command:

Router# show startup-config

Step 3 To see the operating configuration, including any changes you have just made, enter the following command:

Router# show running-config

Step 4 To write your changes to NVRAM and make them permanent, enter the following command:

Router# copy running-config startup-config

Building configuration. . .

[OK]

Router#

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Contents Cisco 1760 Modular Access Router Cabling and Installation Replacement, Repair, or Refund Policy for Hardware Cisco One-Year Limited Hardware Warranty TermsDuration of Hardware Warranty To Receive a Return Materials Authorization RMA NumberMounting the Router in a Rack Parts ListOverview Product Serial Number LocationAttaching Brackets to the Router Bracket Mounting PointsAttaching Brackets to the Rack Attaching the Optional Cable GuideInstalling WIC/VIC Cards Safety InformationCard Installation Removing a WIC or VIC Slot CoverConnecting the Router to Your Local Network Voice Port VerificationDocument that came with the router Connect Power and Verify InstallationPower supply is designed to work with TN power systems Connecting the Power Supply StepConnecting the Console Cable to the Router Connect a PC to the Router Console PortPerform Initial Configuration Initial Configuration Using Cisco CLI-Manual ConfigurationVerifying the Initial Configuration Information for International Users Use the CLI to Configure VoIPSaving the Configuration Command Purpose Configuring the Fast Ethernet InterfaceConfiguring a Dial Plan Configuring Voice Interface Cards Wildcards and Number ExpansionConfiguring FXS Interfaces Shows a typical VICVoice Port Dial-Peer Tag Local Dial PeersTelephone Number Voice Port FXS VIC Destination Pattern Voice Port Dial-Peer Tag Checking the Local Dial Peer ConfigurationCalling Between Routers Remote Location Destination Pattern IP Address Dial-Peer TagOther Routers on the Network IP Address Dial-Peer TagConfiguring FXO Interfaces Checking the Remote Dial Peer ConfigurationCommand Task Configuring E&M InterfacesChecking the FXO Configuration Linking PBXs over the IP Network Remote Dial Peers Configuring Isdn BRI NT/TE Interfaces Checking the E&M ConfigurationTurning the Line Power On/Off Configuring the BRI LayerConfiguring the Isdn Protocol Setting the Network Clock PriorityConfiguration Example Command DescriptionConfiguring did Interfaces Debugging CommandsPrerequisites Configuring a Voice Port to Support didVerifying did Voice Port Configuration Configuring Quality of Service Low Latency Queuing Configuring LLQIP Precedence Multilink PPP with Link Fragmentation Interleave Configuring Mlppp with LFIConfiguring RTP Header Compression Real-Time Transport Protocol Header CompressionCisco.com Frame Relay Configuration for VoIPObtaining Documentation Documentation DVD Documentation FeedbackCisco Product Security Overview Ordering DocumentationCisco Technical Support Website Reporting Security Problems in Cisco ProductsObtaining Technical Assistance Obtaining Additional Publications and Information Submitting a Service RequestDefinitions of Service Request Severity Page Page USA
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1760 specifications

The Cisco Systems 1760 series routers are part of Cisco’s popular line of integrated services routers, designed primarily for small to medium-sized businesses and branch offices. The 1760 series was introduced to provide robust connectivity and routing solutions that facilitate secure and reliable networking. Aimed at offering flexibility, these routers integrate multiple functionalities to enhance operational performance.

One of the main features of the Cisco 1760 router is its modularity. It supports various interface and service modules that allow for customization based on specific networking needs. This modular design enables businesses to expand their networking capabilities over time without necessitating a complete hardware overhaul. The router typically comes equipped with two WAN slots and numerous interface options, including Fast Ethernet and serial interfaces.

The 1760 series routers also support advanced security features, providing businesses with a secure environment for their data transmissions. Built-in firewall capabilities, along with support for Virtual Private Network (VPN) protocols, ensure that sensitive information remains protected. Furthermore, the integration of IPsec and MPLS security features assists organizations in maintaining secure and scalable connections across diverse networks.

Another characteristic of the Cisco 1760 is its support for various technologies, including Quality of Service (QoS). QoS functionality allows network administrators to prioritize traffic, ensuring that critical applications receive the bandwidth they require while minimizing latency. This ability is particularly valuable in environments where voice, video, and essential data applications compete for resources.

The router’s ease of management is also noteworthy. With Cisco’s IOS (Internetwork Operating System), the 1760 provides a user-friendly interface allowing for straightforward configuration and monitoring. The simplicity in managing the network devices helps reduce the burden on IT personnel and enhances overall operational efficiency.

Further enhancing the router’s capabilities is its support for voice over IP (VoIP) applications, making it an ideal choice for organizations looking to implement modern telephony solutions. The ability to support multiple voice channels while maintaining adequate data throughput positions the 1760 as an attractive option for businesses transitioning to unified communications.

In summary, the Cisco Systems 1760 series routers exhibit a harmonious blend of modularity, robust security, traffic management, and VoIP support. They effectively meet the demands of modern networking environments, making them a reliable choice for organizations aiming to streamline operations while ensuring secure connectivity. With their adaptable design, these routers can serve as a powerful backbone for enterprise networking needs.