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IP telephony basic configuration
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 show you thesteps 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 thenetwork.
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 Router A (2811router)

1. #Configure the FA 0/0 interface#
2. RouterA>enable
3. RouterA#configure terminal
4. RouterA(config)#interface FastEthernet0/0
5. RouterA(config-if)#ip address 192.168.10.1255.255.255.0
6. 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.
1. RouterA(config)#ip dhcp poolVOICE #Create DHCP pool named VOICE
2. RouterA(dhcp-config)#network 192.168.10.0 255.255.255.0 #DHCP network network 192.168.10 with /24 mask#
3. RouterA(dhcp-config)#default-router 192.168.10.1 #Thedefault router IP address#
4. 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 IPaddress by placing your cursor over the phone until a configuration summary appears.
Tasks 2: Configure the Call Manager Express telephony service on Router A

You must now configure the CallManager Express telephony service on RouterA to enable voip on your network.
1. RouterA(config)#telephony-service #Configuring the router for telephony services#
2. RouterA(config-telephony)#max-dn 5#Define the maximum number of directory numbers#
3. RouterA(config-telephony)#max-ephones 5 #Define the maximum number of phones#
4. RouterA(config-telephony)#ip source-address 192.168.10.1 port 2000...