cisco voip配置

这是一个由2个Cisco AS5300网关组成的简单网络，一个在SanJose，另一个在Raleigh。在每一个地方都另外配制一个网守Cisco3640。从下面的拓扑中可以看出：网守在一个简单的VoIP呼叫中并不一定需要。
下面的Cisco网守配置同一般的VoIP实现的主要区别：
　　●　每个网关（AS5300）向本地的网守登记。这一过程是通过h323-gateway voip接口命令来实现的
　●　在dial-peer voice 2 voip的sessiontarget指向RAS（注册、认证和状态）而不是ipv4:<ipaddress>。RAS定义了：网关向哪个网守登记，每个呼叫中发送人证请求和查询呼叫的状态信息
　　在H.323网络中，每个区域需要一个主网守来控制多个网关或多个末端H.323设备。在下面的配置中，当呼叫被转向合适的网守时，网守通过被叫号码的tech-prefix负责回应已注册的网关的IP地址。

呼叫处理
下面阐述了网守是怎么处理呼叫处理的：从Raleigh打电话到San Jose。
1． Raleigh 5300A接收到从PBX来的呼叫4085556400。这一电话号码是连接在SanJose的PBX上的。该号码与dial-peer voice 2 voip下的配置（408#）相匹配
2． 向Raleigh的网守的认证请求包括技术前缀和被叫号码：408#4085556400。4085556400匹配zoneprefix命令：408…….
3． Raleigh网守把路由请求发往San Jose的网守（San Jose 3640A）
4． San Jose的网守的配置信息包括tech-prefix: 408#。所以SanJose的网守返回它自己的IP地址给Raleigh的网守
5． 这个IP地址进一步发给Raleigh 5300A（通过一个认证证实消息ACF）
6． Raleigh 5300A然后打开一个H.323呼叫通道，与San Jose的5300A建立通话
配置
Raleigh 5300A的配置信息如下：
Raleigh5300A#sh run
Building configuration...
Current configuration:
!
! Last configuration change at00:15:38 UTC Tue Mar 28 2000
! NVRAM config last updated at00:15:39 UTC Tue Mar 28 2000
!
version 12.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Raleigh5300A
!
logging buffered 50000 debugging
enable secret cisco
!
spe 1/0 1/7
firmware locationsystem:/ucode/mica_port_firmware
!
!
resource-pool disable
!
!
!
clock calendar-valid
ip subnet-zero
!
isdntch-type primary-5ess
isdn voice-call-failure 0
mta receive maximum-recipients 0
!
!
controller T1 0
framing esf
clock source line primary
linecode b8zs
pri-group timeslots 1-24
!
controller T1 1
clock source line secondary 1
!
controller T1 2
!
controller T1 3
!
!
voice-port 0:D
!
!
dial-peer voice 1 pots
answer-address 9195552001
destination-pattern 919#9195552...
direct-inward-dial
port 0:D
prefix 919
!
dial-peer voice 2 voip
destination-pattern 4085556400
tech-prefix 408#
session target ras
!
num-exp 6... 4085556...
gateway

!
interface Ethernet0
no ip address
shutdown
!
interface Serial0:23
no ip address
ip mroute-cache
isdntch-type primary-5ess
isdn incoming-voice modem
fair-queue 64 256 0
no cdp enable
!
interface FastEthernet0
ip address 172.16.120.2 255.255.255.0
duplex auto
speed auto
h323-gateway voip interface
h323-gateway voip id RALgk1 ipaddr 172.16.120.1 1718
h323-gateway voip h323-id [e-mail]
h323-gateway voip tech-prefix 919#
!
ip classless
ip route 172.16.110.0 255.255.255.0 172.16.120.10
no ip http server
!
line con 0
transport input none
line 1 48
transport output lat pad telnet rlogin udptn v120 lapb-ta
line aux 0
line vty 0 4
password cisco
login
!
ntp clock-period 17179850
ntp server 172.16.110.10
end
Raleigh 3640A的配置信息如下：
Raleigh3640A#sh run
Building configuration...

Current configuration:
!
version 12.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Raleigh3640A
!
logging buffered 50000 debugging
enable secret cisco
!
!
!
ip subnet-zero
!
ip dvmrp route-limit 20000
!
!
!
interface Ethernet1/0
ip address 172.16.120.1 255.255.255.0
!
interface Serial1/0
no ip address
no ip mroute-cache
no fair-queue
!
interface TokenRing1/0
no ip address
shutdown
ring-speed 16
!
ip classless
ip route 172.16.110.0 255.255.255.0 172.16.120.10
no ip http server
!
!
gatekeeper
zone local RALgk1 cisco.com
zone remote SJgk1 cisco.com 172.16.110.1 1719
zone prefix SJgk1 408.......
gw-type-prefix 408#*
no shutdown
!
!
line con 0
transport input none
line aux 0
line vty 0 4
password cisco
login
!
ntp clock-period 17179864
ntp server 172.16.110.10
end
San Jose 5300A的配置信息如下：
SanJose5300A#sh run
Building configuration...

Current configuration:
!
! Last configuration change at00:15:49 UTC Tue Mar 28 2000
! NVRAM config last updated at00:15:50 UTC Tue Mar 28 2000
!
version 12.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname SanJose5300A
!
logging buffered 50000 debugging
enable secret cisco
!
!
!
resource-pool disable
!
!
!
ip subnet-zero
!
isdn voice-call-failure 0
mta receive maximum-recipients 0
!
!
controller T1 0
framing esf
clock source line primary
linecode b8zs
ds0-group 1 timeslots 1-4 typee&m-immediate-start
!
controller T1 1
clock source line secondary 1
!
controller T1 2
!
controller T1 3
!
!
voice-port 0:1
!
!
dial-peer voice 1 pots
answer-address 4085556001
destination-pattern 408#4085556...
direct-inward-dial
port 0:1
prefix 6
!
dial-peer voice 2 voip
destination-pattern 9195552...
tech-prefix 919#
session target ras
!
num-exp 2... 9195552...
gateway

!
interface Ethernet0
no ip address
!
interface FastEthernet0
ip address 172.16.110.2 255.255.255.0
duplex auto
speed auto
h323-gateway voip interface
h323-gateway voip id SJgk1 ipaddr 172.16.110.1 1718
h323-gateway voip h323-id [e-mail]
h323-gateway voip tech-prefix 408#
!
ip classless
ip route 172.16.120.0 255.255.255.0 172.16.110.10
no ip http server
!
!
!
line con 0
transport input none
line aux 0
line vty 0 4
password cisco
login
!
ntp clock-period 17179892
ntp server 172.16.110.10
end
San Jose 3640A的配置信息如下：
SanJose3640A#sh run
Building configuration...

Current configuration:
!
! NVRAM config last updated at00:05:33 UTC Tue Mar 28 2000
!
version 12.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname SanJose3640A
!
boot system flash c3640-ix-mz.120-7.T
logging buffered 50000 debugging
enable secret cisco
!
!
!
ip subnet-zero
!
ip dvmrp route-limit 20000
!
!
interface Ethernet1/0
ip address 172.16.110.1 255.255.255.0
!
interface Serial1/0
no ip address
no ip mroute-cache
shutdown
no fair-queue
!
interface Ethernet1/1
no ip address
shutdown
!
ip classless
ip route 172.16.120.0 255.255.255.0 172.16.110.10
no ip http server
!
tftp-server flash:c3640-ix-mz.121-1.bin
!
gatekeeper
zone local SJgk1 cisco.com
zone remote RALgk1 cisco.com 172.16.120.1 1719
zone prefix RALgk1 919.......
gw-type-prefix 919#*
no shutdown
!
!
line con 0
transport input none
line aux 0
line vty 0 4
password cisco
login
!
ntp server 172.16.110.10
end