Cisco Systems 1760 Configuring FXO Interfaces, Checking the Remote Dial Peer Configuration

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Checking the Remote Dial Peer Configuration

If you configured VoIP dial peers on your router by following these examples, you can place calls from that router to telephones on the remote routers (using just the extension if you configured number expansion). If you have trouble placing calls, ping the remote router to make sure you have IP connectivity, or use the show dial-peer voice command to verify that the data you configured is correct.

Note See the “Configuring Quality of Service” section on page 31 if you need to improve the quality of voice connections.

Configuring FXO Interfaces

FXO interfaces provide a gateway from the VoIP network to the analog PSTN or to a PBX that does not support E&M signaling so that users can reach telephones and fax machines outside the VoIP network. Figure 19 shows a typical FXO gateway attached to the West router.

Figure 19 FXO Gateway to PSTN

 

FXS VIC

Source

0/0

 

 

IP cloud

 

West

 

FXO VIC

Destination

1/0

 

dial-peer voice 201 pots destination-pattern 9

PSTNport 0/0 cloud

51077

To create a POTS dial peer for an FXS interface as explained earlier, you enter the complete telephone number of the attached telephone as the destination pattern for incoming calls. However, to create a POTS dial peer for an FXO interface, the destination pattern refers to outgoing calls, and you can include wildcards in it because the PSTN performs the switching.

The VoIP feature can also remove digits that you do not want to send to the PSTN. For instance, to dial 9 to reach an outside line (that is, the analog PSTN), enter the following commands:

West> enable

Password:

West# configure terminal

West(config)# dial-peer voice 201 pots

West(config-dial-peer)# destination-pattern 9

West(config-dial-peer)# port 1/0

When you dial 9, the router makes a connection to the PSTN through voice port 1/0. The PSTN then provides a dial tone. Any digits you enter on the telephone thereafter are interpreted on the PSTN.

To enable East router users to make calls over the West router local PSTN, enter the following commands:

East(config)# dial-peer

voice 701 voip

East(config-dial-peer)#

destination-pattern 7

East(config-dial-peer)#

session target ipv4:192.168.19.27

West(config)# dial-peer

voice 601 pots

West(config-dial-peer)#

destination-pattern 7

West(config-dial-peer)#

port 1/0

When you dial 7 on the East router, the call is connected to the PSTN on the West router. The PSTN then provides a dial tone, and any digits you enter on the telephone thereafter are interpreted on the PSTN.

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Contents Cisco 1760 Modular Access Router Cabling and Installation To Receive a Return Materials Authorization RMA Number Cisco One-Year Limited Hardware Warranty TermsDuration of Hardware Warranty Replacement, Repair, or Refund Policy for HardwareProduct Serial Number Location Parts ListOverview Mounting the Router in a RackBracket Mounting Points Attaching Brackets to the RouterAttaching the Optional Cable Guide Attaching Brackets to the RackSafety Information Installing WIC/VIC CardsRemoving a WIC or VIC Slot Cover Card InstallationVoice Port Verification Connecting the Router to Your Local NetworkDocument that came with the router Connect Power and Verify InstallationPower supply is designed to work with TN power systems Step Connecting the Power SupplyConnect a PC to the Router Console Port Connecting the Console Cable to the RouterInitial Configuration Using Cisco CLI-Manual Configuration Perform Initial 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 Wildcards and Number Expansion Configuring Voice Interface CardsShows a typical VIC Configuring FXS InterfacesVoice 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 Destination Pattern IP Address Dial-Peer Tag Remote LocationIP Address Dial-Peer Tag Other Routers on the NetworkChecking the Remote Dial Peer Configuration Configuring FXO InterfacesCommand Task Configuring E&M InterfacesChecking the FXO Configuration Linking PBXs over the IP Network Remote Dial Peers Checking the E&M Configuration Configuring Isdn BRI NT/TE InterfacesSetting the Network Clock Priority Configuring the BRI LayerConfiguring the Isdn Protocol Turning the Line Power On/OffCommand Description Configuration ExampleDebugging Commands Configuring did InterfacesPrerequisites Configuring a Voice Port to Support didVerifying did Voice Port Configuration Configuring Quality of Service Low Latency Queuing Configuring LLQIP Precedence Real-Time Transport Protocol Header Compression Configuring Mlppp with LFIConfiguring RTP Header Compression Multilink PPP with Link Fragmentation InterleaveCisco.com Frame Relay Configuration for VoIPObtaining Documentation Ordering Documentation Documentation FeedbackCisco Product Security Overview Documentation DVDCisco 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.