Cisco Systems CISCO1751 Determining Voice Port Numbering, ISDN BRI Card LEDs, NT Interface use

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NT Interface (use

Installing WAN and Voice Interface Cards

Note When the interface is configured as NT and is connecting to a TE device, the cable must have the transmit and receive pins swapped (crossover cable). (See Table 3.)

Table 3

Interface Pin Numbers and Functions

 

 

 

 

 

 

 

NT Interface (use

TE Interface (use

ISDN BRI NT/TE

straight-through cable)

crossover cable)

 

 

 

 

Pin 3/T+

 

Pin 3/R+

Pin 3/T+

 

 

 

 

Pin 4/R+

 

Pin 4/R+

Pin 4/R+

 

 

 

 

Pin 5/R-

 

Pin 5/T-

Pin 5/R-

 

 

 

 

Pin 6/T-

 

Pin 6/R-

Pin 6/T-

 

 

 

 

Step 3 Connect the other end to the RJ-45 wall outlet.

ISDN BRI Card LEDs

ISDN BRI voice interface cards have three LEDs, as listed in Table 4.

Table 4 ISDN BRI Voice Interface Card LEDs

LED

B1

B2

OK

Meaning

Call active on B1 channel

Call active on B2 channel

Interface is connected to an ISDN network

If you have additional cards to install, proceed to the appropriate sections in this manual. When you have finished all installations, see the Cisco 1751 Router Software Configuration Guide available on the Documentation CD-ROM.

Determining Voice Port Numbering

Enter the show voice port command to identify the port numbers of voice interfaces installed in your router:

Router# show voice port slot-number/port

Figure 8 on page 9 shows Cisco 1751 router slot numbering.

Cisco 1751 Voice-over-IP Quick Start Guide

8

78-11259-05

 

 

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Contents Installing WAN and Voice Interface Cards, page Configuring Voice-over-IP, page List of Terms, pageAudience Audience, page Conventions, pageConventions Installing WAN and Voice Interface CardsIf You Are Installing Voice Interface Cards WIC and VIC Installation Procedure Connecting the FXS, FXO, and E&M VICs to the Network Figure 2 Inserting a WIC or VIC in the RouterConnector Pinouts for FXS, FXO, and E&M VICs SignalChecking FXS VIC Installation 2-Port ISDN BRI CardDescription RJ-48S Wiring for E&M ConnectorsConnecting the 2-Port ISDN BRI Card Determining Voice Port Numbering ISDN BRI Card LEDsNT Interface use TE Interface useCisco Router and Security Device Manager ExampleCisco ConfigMaker Application Configuring Voice-over-IPConfiguration Tools Major Voice over IP Configuration Tasks Cisco IOS Command-Line InterfaceEntering Configuration Mode Information for International UsersSaving the Configuration Router# show startup-configWestconfig-dial-peer# port 0/0 Dial PlanWildcards and Number Expansion Configuring FXS Interfaces Num-Exp Command EntryDestination ExtensionLocal Dial Peers Telephone NumberVoice Port Dial-Peer TagThese commands are summarized in Figure Destination Pattern Figure 14 East Router Configured for Local Dial PeersFigure 13 Basic Voice Network East Router 919 FXS VIC 1/0Checking Dial Peer Configuration Calling Between RoutersRemote Location Destination Pattern1919555 Configuring FXO Interfaces Checking FXS ConfigurationOther Routers on the Network Remote LocationFigure 18 FXO Gateway to PSTN WestConfiguring E&M Interfaces Checking FXO ConfigurationCommand signal wink-start immediate delay-dialFigure 20 Linking PBXs over the IP Network Remote Dial Peers Tuning Parameters for Real-Time Voice Traffic Checking E&M Interface ConfigurationNeed for Quality of Service IP PrecedenceMultilink PPP Interleaving Configuring RSVPRSVP Configuring Multilink PPP Interleaving Configuring RTP Header CompressionRouterconfig-if# ip rtp reserve lowest-UDP-port range-of-ports RTP Header CompressionConfiguring Frame Relay for VoIP List of Terms Ordering Documentation Obtaining DocumentationCisco.com Submitting a Service Request Documentation FeedbackObtaining Technical Assistance Cisco Technical Support WebsiteDefinitions of Service Request Severity Obtaining Additional Publications and InformationiQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies learn how they can use technology to increase revenue, streamline their business, and expand services. The publication identifies the challenges facing these companies and the technologies to help solve them, using real-world case studies and business strategies to help readers make sound technology investment decisions. You can access iQ Magazine at this URL