Dear experts
I configure my PBX server to work with one VoIP provider. When I put the server in blank network, mean that without VLANs.
The IP PBX server can register to the VoIP provider system normally and I can make call out and receive calls normally.
However, when I put the PBX behind the Cisco router with some configuration. The PBX cannot register with the VoIP provider system.
Eventhough I can receive calls from outside but can not make a call from inside to outside, because of the PBX cannot register.
Could you please help me to point out what is wrong with my Cisco router configuration.
Thanks a lot
Building configuration...
Current configuration : 1982 bytes
!
! Last configuration change at 17:18:27 UTC Mon Feb 24 2014
version 15.1
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
!
enable secret 5 $1$ZJEF$8np0QvQTD1nTaOosa9yGW1
!
no aaa new-model
memory-size iomem 20
!
no ipv6 cef
ip source-route
ip cef
!
!
!
!
!
multilink bundle-name authenticated
!
!
crypto pki token default removal timeout 0
!
!
license udi pid CISCO2911/K9 sn FTX1603AH9C
!
!
!
!
!
!
!
!
interface Embedded-Service-Engine0/0
no ip address
!
interface GigabitEthernet0/0
description internal-LAN
ip address x.x.x.4 255.255.0.0
ip nat inside
ip virtual-reassembly in
duplex auto
speed auto
!
interface GigabitEthernet0/1
no ip address
duplex auto
speed auto
!
interface GigabitEthernet0/1.1
encapsulation dot1Q 11
ip address 172.x.x.1 255.255.240.0
!
interface GigabitEthernet0/2
description internet
ip address 50.x.x.93 255.255.x.x
ip nat outside
ip virtual-reassembly in
duplex auto
speed auto
!
ip forward-protocol nd
!
no ip http server
no ip http secure-server
!
ip nat inside source list 100 interface GigabitEthernet0/2 overload
ip nat inside source static udp x.x.x.8 5060 50.x.x.93 5060 extendable
ip route profile
ip route 0.0.0.0 0.0.0.0 50.x.x.94
ip route 172.16.240.0 255.255.x.0 x.x.x.5
ip route 172.16.242.0 255.255.x.0 x.x.x.5
!
access-list 100 permit ip x.x.0.0 0.0.255.255 any
access-list 100 permit ip 172.16.240.0 0.0.0.255 any
access-list 100 permit ip 172.16.242.0 0.0.0.255 any
access-list 100 permit udp any any range 5004 5090
access-list 100 permit udp any any range 10000 20000
!
!
!
control-plane
!
!
!
line con 0
