VoIP语音电话的设计与实现

dial-peer voice 1 pots 
destination-pattern 111 
port 3/0/0 
! 
dial-peer voice 2 voip
destination-pattern 222 
session target ipv4:192.16.12.1 
! 
dial-peer voice 4 pots 
destination-pattern 222 
port 3/1/0 
! 
dial-peer voice 3 voip 
destination-pattern 111 
session target ipv4:192.16.12.2 
! 

dial-peer voice 1 pots 
destination-pattern 111 
port 3/0/0 
! 
dial-peer voice 2 voip 
destination-pattern 222 
session target ipv4:192.16.12.1 

dial-peer voice 4 pots 
destination-pattern 222 
port 3/1/0 
! 
dial-peer voice 3 voip 
destination-pattern 111 
session target ipv4:192.16.12.2 

Current configuration: 
! 
version 12.0 
service timestamps debug uptime //设定Debug跟踪日志显示其时间 
service timestamps log uptime //设定看Log时显示其时间 
no service password-encryption //口令不加密 
! 
hostname router_A 
! 
enable password cisco 
! 
username router_A password 0 cisco 
! 
ip subnet-zero 
no ip domain-lookup 
! 
voice-port 3/0/0 
echo-cancel coverage 16 //启动回声消除功能 
! 
voice-port 3/0/1 
! 
dial-peer voice 1 pots //定义拨号对等体到语音物理端口 
destination-pattern 2222 //定义电话号码 
port 3/0/0 //定义电话号码 
! 
dial-peer voice 2 voip //定义拨号对等体到语音 
destination-pattern 1111 //为拨号对等体分配电话号码 
req-qos controlled-load //在分配带宽时
RSVP确保即使带宽发生拥塞与过载时，数据流也能得到优先处理。 
codec g711ulaw //拨号点的语音编码速率—64000bps 
ip precedence 5 //IP优先级，５为关键 

no vad //禁用语音活动检测 
session target ipv4:192.168.100.1 //定义Voip路由，为对端的IP地址 
! 
! 
interface Ethernet0/0 
no ip address 
no ip directed-broadcast 
shutdown 
! 
interface Serial0/0 
ip address 192.168.100.2 255.255.255.0 // S0/0的IP地址 
no ip directed-broadcast 
no ip mroute-cache 
no fair-queue 
clockrate 2000000 
ip rtp header-compression //配置RTP头压缩器 
ip rtp compression-connections 25 
ip rsvp bandwidth 1000 320 
! 
interface Ethernet0/1 
no ip address 
no ip directed-broadcast 
shutdown 
! 
ip classless 
ip route 192.168.100.0 255.255.255.0 192.168.100.1 
no ip http server 
! 
line con 0 
transport input none 
line aux 0 
line vty 0 4 
login 
! 
end 

version 12.0 
service timestamps debug uptime //设定Debug跟踪日志显示其时间 
service timestamps log uptime //设定看Log时显示其时间 
no service password-encryption //口令不加密 
! 
hostname router_A 
! 
enable password cisco 
! 
username router_A password 0 cisco 
! 

voice-port 3/0/0 
echo-cancel coverage 16 
! 
voice-port 3/0/1 
! 
dial-peer voice 1 pots 
destination-pattern 2222 
port 3/0/0 
! 
dial-peer voice 2 voip 
destination-pattern 1111 
req-qos controlled-load 
codec g711ulaw 
ip precedence 5 
no vad 
session target ipv4:192.168.100.1 
！

interface Ethernet0/0 
no ip address 
no ip directed-broadcast 
shutdown 
! 
interface Serial0/0 
ip address 192.168.100.2 255.255.255.0 
no ip directed-broadcast 
no ip mroute-cache 
no fair-queue 
clockrate 2000000 
ip rtp header-compression 
ip rtp compression-connections 25 
ip rsvp bandwidth 1000 320 

ip classless 
ip route 192.168.100.0 255.255.255.0 192.168.100.1 
no ip http server 
!