The experience to config Cisco 2811 for VOIP

Source: Internet
Author: User
Tags cisco 2811

Introduction

My company wowould like to set up a call center. the call center needs a VOIP router. we choosed Cisco 2811, and we applied an E1 cable to host 30 phones in. we need to do necessary configuration in the Cisco 2811 router.

 

Config the Cisco 2811 router

We have Ed the router. we started to config the router. first we checked the delivery list file in the package, and found a console cable. the console cable is used to config the router. one end of the console cable is female serial port, the other end of the console cable is 255.11 (network port ). plugged in the same 11 side into the router, and plugged the female serial port into the serial port of my laptop.

Start the "Hyper terminal" program in windows, input a name: cisco2811, for the connection. select China (86) for Country/region, area code 010, Connect using COM1, click on the "Configure" button next to Connect using, click "Restore defaults ". click OK, click OK again.

Then the Console window shows some message. press enter key. the router prompts for user name and password. input cisco as user name and cisco as password. this is the default password of all cisco routers. we need to change it right now. use this one:

Username cisco privilege 15 secret 5 cisco

 

Config the E1 PRI card

There is the T1/E1 card delivered with the router. We plugged the card into the number 0 slot of the router, attach the PRI cable to the E1 card, a yellow light turns on.

Go to the console window, type the command:

Configure terminal

Hostname GW_1

Card type E1 0 0

Network-clock-maid wic 0

Network-clock-select 1 E1 0/0/0

End

Show run

Note: the card type command is to specify the E1 card. If the command not presented, the isdn command will not be available.

 

 

Config the IP address for the network card

GW_1 # configure terminal

 

GW_1 <config> # interfaceFast-ethernet 0/0

 

GW_1 <config-if> # ip addressIp-address Net-mask

 

GW_1 <config-if> # ip route 0.0.0.0 0.0.0.0Default-router

Default-router: address of default gateway

GW_1 <config-if> # exit

 

GW_1 <config> # ip routing

 

 

 

 

Config the relay of router

GW_1 # configure terminal

 

GW_1 <config> # Isdn switch-type primary-net5

Turn on ISDN PRI

GW_1 <config> # controller E10/0/0

 

GW_1 & lt; config-controller & gt; # framing NO-CRC4

Set the mode to NO_CRC4

GW_1 <config-controller> # pri-group timeslots 1-31

All the time slots in one primary group

GW_1 <config-controller> # trunk-group 1 timeslots 1-31

All time slots into the first group

GW_1 <config-controller> # exit

 

GW_1 <config> # interface Serial 0/0/

 

GW_1 <config-if> # isdn overlap-Inserting ing T302 500

Turn on isdn overlap-switching ing mode

GW_1 <config-if> # exit

 

 

Config the dial-peer

GW_1 # configure terminal

 

GW_1 <config> # dial-peer voice100Voip

Add a inbound route named 100

GW_1 <config-dial-peer> # destination-pattern28829...

The number starts with 28829. The "." cocould be wildchar to match any character.

 

GW_1 <config-dial-peer> # session target ipv4:192.168.90.230

Send all the SIP packets to the target address 192.168.90.230

GW_1 <config-dial-peer> # session protocol sipv2

Protocol sip version 2

GW_1 <config-dial-peer> # dtmf-relay rtp-nte

RTP protocol to deal with DTMF

GW_1 <config-dial-peer> # codec g711alaw

Use g.711 Alaw to transmit voice data

Another choice is codec g729r8

GW_1 <config-dial-peer> # exit

 

GW_1 <config> # exit

 

 

 

Config the call out route

GW_1 # configure terminal

 

GW_1 <config> #

 

GW_1 <config> # controller E10/0/0

 

GW_1 <config-controller> # trunk-group 1 timeslots 1-31

Put timeslots in the first group

GW_1 <config-controller> exit

 

GW_1 <config> # controller E10/0/1

Another controller

GW_1 <config-controller> # trunk-group 1 timeslots 1-31

 

GW_1 <config-controller> exit

 

GW_1 <config> # dial-peer voice900Pots

Out bound route named 900

GW_1 <config-dial-peer> # destination-pattern...

Call out number start

GW_1 <config-dial-peer> # direct-inward-dial

Set DID mode

GW_1 <config-dial-peer> # trunkgroup 1

Call out from the first group

GW_1 <config-dial-peer> # exit

 

GW_1 <config> #

 

 

After the configuration, there shoshould be a green light on the E1 card.

 

Debug the router

The show command is very useful when debugging the router. To check the status of controllers, serial ports.

First we can use show run command to view the current configuration of router.

Show controllers command is also useful, Show interface serial-port command is also useful to debug the router.

 

Be careful to the "shutdown" command

When you see a shutdown command, the component is in administrative shutdown status. if it is extremely necessary, you can put the shutdown command. otherwise, please use "no shutdown" to disable the "shutdown" command.

 

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