Networking
Sunday, April 12, 2015
Connecting IP phones
This tutorial is designed to help
you to configure the new voice over ip (voip) features available in Packet
Tracer 6.0. It will show you the steps required to :
·
Configure Call Manager ExpressTM on a
2811 router,
·
Use the various telephony devices
·
Setup dial peers
·
Connect CiscoTM IP
phones as well as analogue phone on the network.
Note
: Connect only IP Phone 1 at the beginning of the lab. IP Phone 2 must be
disconnected
Tasks 1 : Configure interface FastEthernet 0/0 and DHCP server on RouterA (2811 router)
Tasks 1 : Configure interface FastEthernet 0/0 and DHCP server on RouterA (2811 router)
#Configure the FA 0/0 interface#
Router>enable
RouterA#configure terminal
RouterA (config)#interface
FastEthernet0/0
RouterA(config-if)#ip address
192.168.10.1 255.255.255.0
RouterA(config-if)#no shutdown
The DHCP server is needed to provide
an IP adress and the TFTP server location for each IP phone connected to the
network.
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 with /24 mask#
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.
After the configuration, wait a
moment and check that ‘IP Phone 1’ has received an IP address by placing
your cursor over the phone 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 4 to 6 #Automatically assigning ext numbers to buttons#
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 vlans on 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 1
Although ‘IP Phone 1’ 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 5 : 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).
Task 6 : 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 2
#Defining the first directory entry#
RouterA(config-ephone-dn)#number
54002 #Assign the phone number to this entry#
Task 7 : Verify the configuration
Ensure that the IP Phone 2 receives
an IP Address and a the phone number 54002 from RouterA (this can take a
short while). Same procedure as task n°5.
Dial 54001 and check if IP phone 1
correctly receives the call.
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