IP telephony basic configuration Using Packet Tracer

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Tutorial description

This tutorial is designed to help you to configure the new voice over ip (voip) features available in Packet Tracer 5.3. It will the steps required to :

  •       Configure Call Manager Express on a Cisco router
  •       Use the various telephony devices
  •       Setup dial peers
  •       Connect  Cisco IP phones as well as analogue phone on the network.

Network diagram

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Tasks 1 : Configure interface FastEthernet 0/0 and DHCP server on RouterA

#Configure the FE 0/0 interface#

RouterA>enable

RouterA#configur □ terminal

RouterA(config)#interface □ FastEthernet □ 0/0

RouterA(config-if)#ip □ address  □ 192.168.1.1 □  255.255.255.0

RouterA(config-if)#no □ shutdown

Note: The DHCP server is needed to provide an IP address and the TFTP server location for each IP phone.

RouterA(config)#ip □ dhcp □ pool □ VOICE      [Create DHCP pool named VOICE]

RouterA(dhcp-config)#network □ 192.168.10.0 □ 255.255.255.0    [DHCP network, network 192.168.10.0]

RouterA(dhcp-config)#default-router □ 192.168.10.1    [The default router IP address]

RouterA(dhcp-config)#option □ 150 □ ip □ 192.168.10.1  [Mandatory for voip configuration.]

Note: After the configuration, wait a moment  and check that ‘IP Phone 1’ has received an IP address until a configuration summary appears.

Tasks 2 : Configure the Call Manager Express telephony service on RouterA

You must now configure the Call Manager Express telephony service on RouterA  to enable voip on your network.

RouterA(config)#telephony-service     [Configuring the router for telephony services]

RouterA(config-telephony)#max-dn □ 5     [Define the maximum number of directory numbers]

RouterA(config-telephony)#max-ephones □ 5    [Define the maximum number of phones]

RouterA(config-telephony)#ip □ source-address □ 192.168.10.1 □ port □ 2000      [IP Address source]

RouterA(config-telephony)#auto assign □ 1 □ to □ 5    [Automatically assigning ext numbers to buttons]

Task 4 : Configure a voice vlan on SwitchA

Apply the following configuration on SwitchA interfaces. This configuration will separate voice and data traffic in different vlan SwitchA. data packets will be carried on the access vlan.

SwitchA(config)#interface range □ fa0/1 – 5    [Configure interface range]

SwitchA(config-if-range)#switchport □ mode □ access

SwitchA(config-if-range)#switchport □ voice □ vlan □ 1   [Define the VLAN on which voice packets will be handled]

Task 5 : Configure the phone directory for IP Phone 0

Although ‘IP Phone 0’ is already connected to SwitchA, it needs additionnal configuration before beeing able to communicate. You need to configure RouterA CME to assign a phone number to this IP phone.

RouterA(config)#ephone-dn □ 1    [Defining the first directory entry]

RouterA(config-ephone-dn)#number □ 54001   [Assign the phone number to this entry]

Task 6 : Verify the configuration

Ensure that the IP Phone receives an IP Address and a the phone number 54001 from RouterA  (this can take a short while).

pho

Task 6 : Configure the phone directory for IP Phone 1

Connect IP Phone 2 to SwitchA and power the phone ON using the power adapter (Physical tab).

RouterA(config)#ephone-dn □ 2     [Defining the first directory entry]

RouterA(config-ephone-dn)#number □ 54002    [Assign the phone number to this entry]

Task 7 : Configure the phone directory for IP Phone 2

Connect IP Phone 2 to SwitchA and power the phone ON using the power adapter (Physical tab).

RouterA(config)#ephone-dn □ 3      [Defining the first directory entry]

RouterA(config-ephone-dn)#number □ 54003    [Assign the phone number to this entry]

–                                                               ————————– Thanks

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Md Nurul Akter

11 Comments

  1. RIFAT KHAN

    vai ami packet tracer 6.0 use kori.kintu dhcp server er command gulo complit korer por o ip phone gulo ip address pai na .ektu help koren please

  2. Md Nurul Akter
    Md Nurul Akter on

    Vai Rifat, Apni Task-4 complete korar por ip phone ip address pabe. Voice VLAN main………..

  3. RIFAT KHAN

    vai router theke je link ta asche aita switch er koto no porte lagano?
    mane koto no f0/? fast etharnet porte laga no?

  4. sorfuddin ahmad
    sorfuddin ahmad on

    Dear brother actually i only know how configure Cisco router in Packet tracer by IPV4 & IPV6 in different protocol,like static routing,dynamic routing & etc. but i don”t know how to configure VOIP features in packet tracers so thank for your post & “”””EID MUBARAK””””

  5. RIFAT KHAN

    thanks for the post.
    vai amer mone hoi network er shob ip gulo eki net worker hole mone hoi valo hoito.jemon 192.168.1.1 ip tai shob khetre beboher korle valo hoito(192.168.10.1 use na kore).

  6. Md Nurul Akter
    Md Nurul Akter on

    aita typing mistake, fE0/0 ip add – 192.168.10.1,
    Tai default router ip add 192.168.10.1. Thx for Comment

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