IP备份拨号策略

IP备份拨号策略

一、组网需求：

无

二、组网图:

TEL1----C&C08----(FXO)2008L-----IP-----VG1

                               |

                               -------VG2

说明：

VG1的ip地址是172.31.19.104

VG2的ip地址是172.31.19.103

VG2上有fxs的电话号码是02885146960，VG1上无此电话号码

三、配置步骤：

2008L上的配置：

[VG2008L-voice-dial-entity12]dis cu

Now create configuration...

Current configuration

!

version 1.80

local-user a service-type administrator password simple a

sysname VG2008L

info-center console

info-center console debugging

firewall enable

!

interface Ethernet0

ip address 172.31.19.116 255.255.0.0

!

voice-setup

!

dial-program

terminator #

number-match longest

!

entity 1 pots

match-template 1T

line 0

send-number all

!                                  

entity 3 pots

match-template 1T

line 1

send-number all

!

entity 4 pots

match-template 1T

line 2

send-number all

!

entity 5 pots

match-template 1T

line 3

send-number all

!

entity 6 pots

match-template 1T

line 4

send-number all

!

entity 7 pots

match-template 1T

line 5                           

send-number all

!

entity 8 pots

match-template 1T

line 6

send-number all

!     

entity 9 pots

dial-prefix 8,,,,,

match-template T

line 7

send-number all

!

!

entity 10 pots

match-template 1T

send-number all

!

entity 11 voip

address ip 172.31.19.103

fast-connect

match-template 028…

outband h225

type-number called national

tunnel-on                        

!

entity 12 voip

address ip 172.31.19.104

match-template 0288514

!

subscriber-line 0

!

subscriber-line 1

!

subscriber-line 2

!

subscriber-line 3

!

subscriber-line 4

!

subscriber-line 5

!

subscriber-line 6

!

subscriber-line 7

private-type delay

cid type simple

然后，TEL1通过CC08二次拨号，被叫号码为02885146960，得到的调试信息如下：

 

DPL_INTF: Get entity 12 successfully!

IPP_VCC [  7]: Receive CCSetup Msg: CallerNumber=8801, CalledNumber=02885146960,FacilityLen=0

IPP_VCC [  7]: Send IPCallProceeding Msg when receive CCSetup Msg

IPP_VCC [  7]: Get VOIP dialpeer 12 in CCSetup Msg

IPP_SOK [  7]: Send H225 AsynSocket Request when receive CCSetup Msg  port:1720

IPP: SOCK: SOCK_STREAM =====> INADDR_ANY

IPP_SOK [  7]: IPP_CreateAsycSock is OK!

IPP_SOK [  7]: Now Connect Socket!

IPP_SOK [  7]: Receive H225 AsynSock Ack, sokid=308, src=1720@172.31.19.116, dst=1720@172.31.19.116

IPP_225 [  7]: Send Setup Msg when 225 socket created

IPP_225 [  7]: Setup Msg FastCOnnect=False, Tunnel=False

IPP_225 [  7]: Receive CallProceeding Msg, crv=99, FastStart=FALSE, tunnel=FALSE

IPP_225 [  7]: Receive ReleaseComplete Msg crv=99 reason=129+255,FacilityLen=0

IPP_VCC [  7]: Send IPRelease Msg when receive ReleaseComplete Msg

IPP_C&C [  7]: IPCCB is released

DPL_INTF: Get entity 11 successfully!

IPP_VCC [  7]: Receive CCSetup Msg: CallerNumber=8801, CalledNumber=02885146960,FacilityLen=0

IPP_VCC [  7]: Send IPCallProceeding Msg when receive CCSetup Msg

IPP_VCC [  7]: Get VOIP dialpeer 11 in CCSetup Msg

IPP_SOK [  7]: Send H225 AsynSocket Request when receive CCSetup Msg  port:1720

IPP: SOCK: SOCK_STREAM =====> INADDR_ANY

IPP_SOK [  7]: IPP_CreateAsycSock is OK!

IPP_SOK [  7]: Now Connect Socket!

IPP_SOK [  7]: Receive H225 AsynSock Ack, sokid=308, src=1720@172.31.19.116, dst=1720@172.31.19.116

IPP_225 [  7]: Send Setup Msg when 225 socket created

IPP_225 [  7]: Setup Msg FastCOnnect=True, Tunnel=True

IPP_225 [  7]: Receive CallProceeding Msg, crv=100, FastStart=FALSE, tunnel=TRUE

IPP_225 [  7]: Receive Alerting Msg crv=100, faststart=TRUE, tunnel=TRUE, h245=NONE,FacilityLen=0

IPP_SOK [  7]: Send RTP/RTCP Sock Req when receive Alerting Msg

IPP_SOK [  7]: Rcv DATA SockAck, ids=309:310, RTP=16912@172.31.19.116, RTCP=16913@172.31.19.116

IPP_VPP [  7]: Send Codec Msg when create RTP/RTCP socket OK: CodecType = G729

IPP_VCC [  7]: Send IPAlerting Msg when receive Alerting Msg

IPP_225 [  7]: Receive Connect Msg crv=100, faststart=FALSE, tunnel=TRUE, h245=NONE,FacilityLen=0

IPP_VCC [  7]: Send IPConnect Msg when receive Connect Msg

结果说明：1.我们的voip语音实体match-template命令只管匹配，送出去的号码还是按照实际的被叫号码发送：如上例，用户拨的是02885146960，无论选择实体11还是实体12，虽然match-template只是028…/0288514，但送到对端的都是02885146960这个号码。但请注意实体9的存在，如果没有它，当用户拨到0288514的时候，网关就会把号码路由出去了（网关在收号的同时就在匹配实体），而由于它的存在，使得网关不能确定可选实体，这样使得用户拨完了02885146960，再按照精确度匹配实体12

2. IP备份策略。从调试信息可以看到，因为实体12比实体11更精确，所以呼叫选择实体12发出，但是因为实体12对应的vg1（172.31.19.104）没有02885146960这个号码，于是vg1返回releasecomplete消息，这时，2008L不是挂断呼叫，而是再选择实体11（比实体12次一级的匹配），于是呼叫又向vg2（172.31.19.103）发起，最终成功进行通话。

四、配置关键点：

无