路由器R0,作为IP电话的网关和dhcp服务器负责分配号码和IP地址:
Router(config)#int fa0/0 Router(config-if)#ip add 192.168.0.254 255.255.255.0 #添加ip地址 Router(config-if)#no shut Router(config)#telephony-service Router(config-telephony)#max-dn 5 #定义可以允许注册最多的电话号码（针对号码） Router(config-telephony)#max-ephones 5 #可以允许注册最多的电话数（针对物理设备） Router(config-telephony)#ip source-address 192.168.1.254 port 2000 # IP电话CME服务的IP和端口（默认2000），IP电话启动之后会自动向此地址发出注册请求。 Router(config-telephony)#auto assign 1 to 5 # 自动将号码分配给电话 Router(config)#ip dhcp pool voip #设置dhcp IP地址池分配ip地址 Router(dhcp-config)#network 192.168.0.0 255.255.255.0 Router(dhcp-config)#default-router 192.168.0.254 #设置网关 Router(dhcp-config)#option 150 ip 192.168.0.254 Router(config)#ephone-dn 1 #分配号码1号线 Router(config-ephone-dn)#number 4001 Router(config)#ephone-dn 2 Router(config-ephone-dn)#number 4002 Router(config)#ephone-dn 3 Router(config-ephone-dn)#number 4003 Router(config)#ephone-dn 4 Router(config-ephone)#button 1:2 Router(config-ephone)#type ? 7960 Cisco IP Phone 7960 CIPC Cisco IP Phone CIPC ata ATA phone emulation for analog phone Router(config-ephone)#type 7960 //设置ip电话类型 Router(config-ephone)#mac-address 0003.e496.6103 //设置ip地址 Router(config-ephone)#? Router(config-ephone)# //查看ephone设备 Router#show ephone ephone-1 Mac:0007.EC3B.C89E TCP socket:[1] activeLine:0 REGISTERED in SCCP ver 12 and Server in ver 8 mediaActive:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:8 IP:192.168.0.1 1026 7960 keepalive 43 max_line 2 button 1: dn 1 number 4002 CH1 IDLE ephone-2 Mac:000D.BD84.AD23 TCP socket:[1] activeLine:1 UNREGISTERED mediaActive:0 offhook:1 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:8 IP:0.0.0.0 0 CIPC keepalive 43 max_line 2 button 1: dn 2 number 4003 CH1 DOWN ephone-3 Mac:0090.0C98.E7A4 TCP socket:[1] activeLine:0 REGISTERED in SCCP ver 12 and Server in ver 8 mediaActive:0 offhook:0 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:8 IP:192.168.0.2 1026 7960 keepalive 43 max_line 2 button 1: dn 3 number 4005 CH1 IDLE ephone-4 Mac:0007.ECCC.5CB5 TCP socket:[1] activeLine:1 UNREGISTERED mediaActive:0 offhook:1 ringing:0 reset:0 reset_sent:0 paging 0 debug:0 caps:8 IP:0.0.0.0 0 keepalive 43 max_line 2 button 1: dn CH1 DOWN Router#
SW1:
Sw1(config)#int range fa0/1-10 Sw1(config-if-range)#switchport mode access Sw1(config-if-range)#switchport voice vlan 1 #设置语音vlan 1 Sw1(config-if-range)#mls qos trust cos #设置qos值
SW2:
Sw2(config)#int range fa0/1-10 Sw2(config-if-range)#switchport mode access Sw2(config-if-range)#switchport voice vlan 1 Sw2(config-if-range)#mls qos trust cos
IP电话可以自己获取ip地址和号码，就可以接通了：
