Cisco CISCO1751 User manual

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Cisco 1751 Voice-over-IP Quick Start Guide
The Cisco 1751 Voice over IP Quick Start Guide explains how to install WAN Interface Cards and Voice
Interface Cards, how to run configuration tools, and how to perform essential Voice-over-IP (VoIP)
configuration tasks.
This document contains the following sections:
•Audience, page 1
•Conventions, page 2
•Installing WAN and Voice Interface Cards, page 2
•Cisco Router and Security Device Manager, page 9
•Configuring Voice-over-IP, page 10
•List of Terms, page 30
•Obtaining Documentation, page 31
•Documentation Feedback, page 32
•Obtaining Technical Assistance, page 32
•Obtaining Additional Publications and Information, page 33
Audience
This guide is intended primarily for users who configure and maintain routers, but are not necessarily
familiar with tasks, the relationship between tasks, or the commands necessary to perform particular
tasks to configure VoIP. We assume that you are familiar with Cisco IOS software, IP and telephony
networks, and PBX operation for E&M installations.
List of Terms provides definitions for many of the technical terms used in this document.

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Conventions
Conventions
This document uses the following conventions:
•Commands and keywords are in boldface.
•Optional keywords or arguments are in square brackets.
•Variables for which you supply values are in italic.
•Titles of publications and new words or concepts are in italic.
•Information the router displays on the console screen is in screen font.
•Information that you enter at the CLI is in boldface screen font.
Installing WAN and Voice Interface Cards
The Cisco 1751 router supports two slots that can be used to install either WAN Interface Cards (WICS)
or Voice Interface Cards (VICS), and one slot that can be used to install only a VIC.
If You Are Installing Voice Interface Cards
The router supports one to three Cisco voice interface cards (VICs). Each VIC provides two ports. You
need one VIC port for each voice connection.
Note To transmit voice calls over an IP WAN, you need (in addition to the VICs) at least one WAN interface
card (WIC) in the router to provide the connection to the WAN.
There are four types of VIC interfaces, as shown in Figure 3:
•FXS (foreign exchange station) interface connects directly to a standard telephone, fax machine, or
similar device. The FXS VIC interface supplies ringing voltage, dial tone, and similar signals to the
station. Ports on this VIC are color-coded gray.
•FXO (foreign exchange office) interface connects local calls to a PSTN central office or to a PBX
that does not support E&M signaling. This is the interface a standard telephone provides. Ports on
this VIC are color-coded pink.
•E&M is a signaling technique for two-wire and four-wire telephone and trunk interfaces. The E&M
VIC connects remote calls from an IP network to a PBX for local distribution. Ports on this VIC are
color-coded brown.
•The ISDN BRI NT/TE voice interface card provides a client-side (TE) ISDN S/T physical interface
for connection to an NT1 terminating an ISDN telephone network and can also be configured to
provide a network termination (NT) interface with phantom power. Each of its two ports can carry
two voice calls (one over each ISDN B channel), for a total of four calls per ISDN BRI card. At
present, the ISDN BRI VIC does not support ISDN devices such as digital telephone, fax, or modem.
Figure 1 shows a typical VIC.

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Installing WAN and Voice Interface Cards
Figure 1 Voice Interface Card
You should install and cable VICs before performing the software configuration tasks explained later in
this guide.
Warning Be sure to observe all warnings and safety precautions in the installation guide.
Caution VICs do not support online insertion and removal (hot swap). To avoid equipment damage, turn off
electrical power and disconnect network cables before you insert a VIC in the router.
WIC and VIC Installation Procedure
Follow these steps, and refer to Figure 2 to insert a WIC or a VIC in the router:
Step 1 Make sure the router is turned off and is disconnected from the power supply.
Step 2 Loosen the thumbscrews on the WIC or VIC slot cover on the rear panel.
You should be able to loosen the screws using your fingers; however, if the screws are very tight, you
might need to use a Phillips screwdriver.
Step 3 Remove the metal plate that covers the card slot.
Step 4 Hold the card by the edges on either side of the card front panel, and line up the card edges with the
guides inside the card slot, as shown in Figure 2.
Step 5 Insert the card in the slot and gently push it into the router until the front panel of the card is flush with
the rear panel of the router.
Step 6 Tighten the screws.
10695
SEE MANUAL BEFORE INSTALLATION
VIC
E&M
IN USE IN USE
1 0
VIC ports

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Installing WAN and Voice Interface Cards
Figure 2 Inserting a WIC or VIC in the Router
If you need more detailed installation instructions, refer to the Cisco WAN Interface Cards Hardware
Installation Guide.
Connecting the FXS, FXO, and E&M VICs to the Network
If you installed FXS, FXO, or E&M VICs, use the following cables, and refer to Figure 3 to connect
them to the network:
•Standard RJ-11 modular telephone cable to connect FXS VIC ports (color-coded gray) to a
telephone or fax machine.
•Standard RJ-11 modular telephone cable to connect FXO VIC ports (color-coded pink) to the PSTN,
or to a PBX that does not support E&M signaling, through a telephone wall outlet.
•Standard RJ-48S connector and cable to connect E&M VIC ports (color-coded brown) to a PBX line.
The cable wiring depends on the type of connection. For details, refer to the Cisco WAN Interface
Cards Hardware Installation Guide.
46565
Interface card
+5, +12, -12 VDC
CONSOLE
AUX
Model Cisco 1750
10/100 ETHERNET
SEE MANUAL BEFORE INSTALLATION
VIC
2FXO
PVDM OK MOD OK
SLOT 1
SLOT 2 OK
FDX
SLOT 0 OK
SLOT 1 OK
100 LINK
THIS SLOT
ACCEPTS
ONLYVOICE
INTERFACE
CARDS
SLOT 2
SLOT 0
1
IN USE
0
IN USE
Guides
SEE MANUAL BEFORE INSTALLATION
VIC
2FXS
1
IN USE
0
IN USE

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Installing WAN and Voice Interface Cards
Figure 3 Connecting VICs to the Network
When you are finished, reinstall any network interface cables you removed and turn on power to the
router.
Connector Pinouts for FXS, FXO, and E&M VICs
Figure 4 shows the wiring patterns for FXS and FXO VIC connectors, and Table 1 lists the FXS and FXO
pinouts.
Note Pins that are not used should not be connected.
Figure 4 RJ-11 Wiring for FXS and FXO Connectors
SEE MANUAL BEFORE INSTALLATION
VIC
E&M
IN USE IN USE
1 0
SEE MANUAL BEFORE INSTALLATION
VIC
FXO
IN USE IN USE
1 0
SEE MANUAL BEFORE INSTALLATION
VIC
FXS
IN USE IN USE
1 0
PBX
FXS VIC
FXO VIC
E&M VIC
10691
Table 1 FXS and FXO Pinouts
Pin Signal
1–
2–
3Ring
4Tip
5–
6–
H11420
16

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Installing WAN and Voice Interface Cards
Figure 5 shows the wiring pattern for an E&M connector, and Table 2 lists the E&M pinouts.
Note The E&M VIC pinout depends on the PBX type and connection. Pins that are not used should not be
connected.
Figure 5 RJ-48S Wiring for E&M Connectors
Checking FXS VIC Installation
If you installed an FXS VIC, connect a handset to the VIC port. When router power is on, you should be
able to hear the dial tone when you lift the handset. The dial tone should stop after you dial a digit. If
you have trouble, use the show voice port command to make sure that the VIC is installed correctly, or
try connecting a different handset to the VIC.
2-Port ISDN BRI Card
The ISDN BRI NT/TE voice interface card provides a client-side (TE) ISDN S/T physical interface for
connection to an NT1 terminating an ISDN telephone network. It can also be configured to provide a
network termination (NT) interface with phantom power. Each of its two ports can carry two voice calls
(one over each ISDN B channel), for a total of four calls per ISDN BRI card.
Table 2 E&M Pinouts
Pin Signal Description
1 SB –48V signaling battery
2 M-lead Signaling input
3 R Ring, audio input
4 R or R1 Ring, audio input/output, or
output
5 T or T1 Tip, audio input/output, or
output
6 T Tip, audio input
7 E-lead Signaling output
8 SG Signaling ground return
H11421
18

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Installing WAN and Voice Interface Cards
The card is illustrated in Figure 6.
Figure 6 2-Port ISDN BRI Card Front Panel
Connecting the 2-Port ISDN BRI Card
Use the straight-through RJ-45 cable to connect the 2-port ISDN BRI card to the ISDN network through
a telephone wall outlet.
Caution To prevent damage to the router, be sure to connect the BRI cable to the BRI connector only and not to
any other RJ-45 connector.
Step 1 Confirm that the router is still turned off.
Step 2 Connect one end of a straight-through RJ-45-to-RJ-45 cable to the card’s RJ-45 port. (See Figure 7.)
Figure 7 Connecting the 2-Port ISDN BRI Card
51075
VIC
2B-NT/TE
B1
B2
OK
SEE
MANUAL
BEFORE
INSTALLATION
ISDN BRI S/T 1 ISDN BRI S/T 0
RJ-45 ports
RJ-45 ports
VIC
2B-S/T TE
B1
B2
OK
SEE
MANUAL
BEFORE
INTALLATION
ISDN BRI S/T 1 ISDN BRI S/T 0
NT1 device
51076
Straight-through
RJ-45-to-RJ-45 cable
S/T port

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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.)
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.
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.
Table 3 Interface Pin Numbers and Functions
ISDN BRI NT/TE
NT Interface (use
straight-through cable)
TE Interface (use
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-
Table 4 ISDN BRI Voice Interface Card LEDs
LED Meaning
B1 Call active on B1 channel
B2 Call active on B2 channel
OK Interface is connected to an
ISDN network

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Cisco Router and Security Device Manager
Figure 8 Cisco 1751 Router Slot Numbering
Figure 9 shows the VIC port numbering.
Figure 9 VIC Port Numbering
Example
If you install a VIC in both SLOT 0 and SLOT 1 of the router, the ports in each of these slots would be
numbered as follows:
SLOT 0—0/0 and 0/1
SLOT 1—1/0 and 1/1
Cisco Router and Security Device Manager
Cisco Router and Security Device Manager (SDM) is a web-based configuration tool that allows
you to configure LAN and WAN interfaces, routing, Network Address Translation (NAT),
firewalls, VPNs, and other features on your router. If SDM is installed on your router, configure
the router by following the instructions in the Cisco Router and Security Device Manager (SDM)
Quick Start Guide. If this document was not shipped with your router, you can obtain SDM and
instructions for installing it on your router from the following location:
http://www.cisco.com/pcgi-bin/tablebuild.pl/sdm
+5, +12, -12 VDC
CONSOLE
AUX
Model Cisco 1751
10/100 ETHERNET
SLOT 2
SEE MANUAL BEFORE INSTALLATION
1
IN USE
VIC
2FXO
PVDM OK MOD OK
SLOT 1
SLOT 2 OKFDXSLOT 0 OKSLOT 1 OK 100 LINK
THIS SLOT
ACCEPTS
ONLY VOICE
INTERFACE
CARDS
SLOT 0
Power
socket
Power switch
46560
FDX/100/LINK LEDs
Auxiliary port
Kensington-compatible
locking socket
WIC/VIC
slot 1
10/100-Mbps
Ethernet port
PVDM
OK LED
Slot 0
OK LED
Slot 1
OK LED
WIC/VIC
slot 0
Ground
wire
MOD
OK LED
Console port
Slot 2
OK LED
0
IN USE
SEE MANUAL BEFORE INSTALLATION
1
IN USE
VIC
2FXS
0
IN USE
VIC
slot 2
10694
SEE MANUAL BEFORE INSTALLATION
VIC
E&M
IN USE IN USE
1 0
VIC port 1 VIC port 0

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Configuring Voice-over-IP
To obtain the SDM release notes, and other SDM documentation, go to http://www.cisco.com/go/sdm
and click the Technical Documentation link.
Note If you need to configure Voice-over-IP, use the Configuring Voice-over-IP section of this Quick Start
Guide.
Configuring Voice-over-IP
Voice-over-IP (VoIP) enables a Cisco 1751 router to carry voice traffic (for example, telephone calls and
faxes) over an IP network, simultaneously with data traffic. (See Figure 10.) This guide describes the
configuration tools and the major configuration tasks to configure the router.
Figure 10 Voice and Data Traffic on an IP Network
Configuration Tools
You can configure VoIP by using one of the following tools:
•Cisco ConfigMaker application
•Cisco IOS command-line interface (CLI)
Cisco ConfigMaker Application
Use the Cisco ConfigMaker application to address and configure one or more devices or to create an
entire network. A series of wizards and dialog boxes can make your voice-configuration task simple and
fast.
Follow these steps to install the Cisco ConfigMaker application on your PC:
Step 1 Disable any virus-scanning software you have running.
Step 2 Close all programs active on your PC.
Step 3 Insert the CD into your CD-ROM drive.
Step 4 The Cisco ConfigMaker installer starts automatically.
10690
IP cloud