I have an 871 router and when I attempt to connect a SIP phone inside my network it says it registers correctly, and I can recieve calls, but unable to make any calls. Same phone same config on a dlink router works fine. The 871 apparently is blocking something but not sure what.
p_router#sh run
Building configuration...
Current configuration : 3982 bytes
!
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname p_router
!
boot-start-marker
boot-end-marker
!
!
no aaa new-model
!
resource policy
!
ip cef
!
!
no ip dhcp use vrf connected
ip dhcp excluded-address 10.105.21.200 10.105.21.254
ip dhcp excluded-address 10.105.21.1 10.105.21.20
!
ip dhcp pool NETWORK
network 10.105.21.0 255.255.255.0
default-router 10.105.21.254
dns-server 10.105.21.2 10.105.21.3
!
!
no ip domain lookup
!
!
!
username admin privilege 15 secret 5 PasswordOmitted.
!
!
!
!
!
!
interface FastEthernet0
!
interface FastEthernet1
!
interface FastEthernet2
!
interface FastEthernet3
!
interface FastEthernet4
ip address dhcp
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface Vlan1
ip address 10.105.21.254 255.255.255.0
ip nat inside
ip virtual-reassembly
!
!
ip route 0.0.0.0 0.0.0.0 dhcp
!
!
no ip http server
no ip http secure-server
no ip nat service sip tcp port 5060
no ip nat service sip udp port 5060
ip nat inside source list 1 interface FastEthernet4 overload
ip nat inside source static tcp 10.105.21.3 22 interface FastEthernet4 22
ip nat inside source static tcp 10.105.21.3 21 interface FastEthernet4 21
ip nat inside source static tcp 10.105.21.3 80 interface FastEthernet4 80
ip nat inside source static tcp 10.105.21.200 3389 interface FastEthernet4 3389
!
access-list 1 permit 10.105.21.0 0.0.0.255
access-list 23 permit any
access-list 100 remark WAN
access-list 100 deny ip host 255.255.255.255 any
access-list 100 deny ip 127.0.0.0 0.255.255.255 any
access-list 100 permit ip any any
!
!
!
!
control-plane
!
!
line con 0
logging synchronous
no modem enable
line aux 0
line vty 0 4
access-class 23 in
login local
transport input ssh
!
scheduler max-task-time 5000
end
p_router#
