Tutorial description
This tutorial is designed to help you to configure the voice over ip (voip) features available in Packet Tracer 7.3
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.
Network diagram
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)
Configure the FastEthernet 0/0 interface with 192.168.10.1/24 ip address. Don’t forget to enable the interface with the no shutdown command !
RouterA>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 each IP phone connected to the network with an IP adress and the TFTP server location.
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 configuring the ISR router, 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 Switch A
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.
Source : packettracernetwork.com
