Hi everyone !
Our client is testing a new SIP trunk implementation with a different ISP.
They have a SIP trunk between a Cisco 2911 and ISP for PSTN accesss, and a H323 Trunk between CUCM ver 7.1.3.30000-1 for proper call routing to that Cisco2911 gateway.
Here you have Cisco 2911 configuration:
VoiceGW-B#sh runn
Building configuration...
Current configuration : 9341 bytes
!
! Last configuration change at 19:09:50 AST Thu Jan 24 2013 by admin
!
version 15.0
service nagle
no service pad
service tcp-keepalives-in
service tcp-keepalives-out
service timestamps debug datetime msec localtime show-timezone
service timestamps log datetime msec localtime show-timezone
service password-encryption
service sequence-numbers
!
hostname VoiceGW-B
!
boot-start-marker
boot-end-marker
!
card type t1 0 0
enable secret 5 $1$T05j$vJkR0V2l2/Iu1mIIeVPcu1
!
no aaa new-model
clock timezone AST -4
network-clock-participate wic 0
network-clock-select 1 T1 0/0/0
!
no ipv6 cef
ip source-route
ip cef
!
!
!
!
ip domain name domain.local
multilink bundle-name authenticated
!
!
!
!
isdn switch-type primary-ni
!
!
!
voice-card 0
dspfarm
dsp services dspfarm
!
!
!
voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
fax protocol t38 nse force ls-redundancy 0 hs-redundancy 0 fallback pass-through g711ulaw
h323
sip
min-se 90
header-passing
early-offer forced
midcall-signaling passthru
!
voice class codec 333
codec preference 1 g711ulaw
codec preference 2 g729r8
!
voice class codec 2
codec preference 2 g711ulaw
codec preference 3 g711alaw
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g711alaw
codec preference 3 g729r8
!
voice class h323 1
h225 timeout tcp establish 3
!
!
!
!
!
!
!
redundancy
!
!
controller T1 0/0/0
cablelength long 0db
pri-group timeslots 1-24 service mgcp
description SF 137-6042 primary (redundante GWY-A 137-6041)
!
!
!
!
!
interface Loopback0
description ** USED FOR IPT, ROUTING, MANAGEMENT ETC... **
ip address 192.168.100.11 255.255.255.255
no ip redirects
no ip proxy-arp
h323-gateway voip interface
h323-gateway voip bind srcaddr 192.168.100.11
!
interface GigabitEthernet0/0
description ISP SIP trunk
ip address 120.100.11.135 255.255.255.128
ip nat outside
ip virtual-reassembly
duplex auto
speed auto
!
interface GigabitEthernet0/1
description *** P2P to 4506 Core A ***
ip address 192.168.101.6 255.255.255.252
no ip redirects
no ip proxy-arp
duplex auto
speed auto
!
interface GigabitEthernet0/2
description *** P2P to 4506 Core B ***
ip address 192.168.101.14 255.255.255.252
no ip redirects
no ip proxy-arp
duplex auto
speed auto
!
interface Serial0/0/0:23
description ** D Channel ISP_2 **
no ip address
encapsulation hdlc
isdn switch-type primary-dms100
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
!
router eigrp 100
network 192.168.100.11 0.0.0.0
network 192.168.101.6 0.0.0.0
network 192.168.101.14 0.0.0.0
passive-interface default
no passive-interface GigabitEthernet0/1
no passive-interface GigabitEthernet0/2
eigrp stub connected summary
!
ip forward-protocol nd
!
ip http server
no ip http secure-server
ip http path flash:/GUI
!
ip route 120.100.0.0 255.255.0.0 120.100.11.129
!
logging 10.2.173.5
access-list 1 permit 192.168.5.0 0.0.0.255
!
!
!
!
!
!
!
!
!
!
control-plane
!
!
voice-port 0/0/0:23
!
voice-port 1/0/0
!
voice-port 1/0/1
!
voice-port 1/0/2
!
voice-port 1/0/3
!
voice-port 1/0/4
!
voice-port 1/0/5
!
voice-port 1/0/6
!
voice-port 1/0/7
!
ccm-manager redundant-host 192.168.4.11
ccm-manager mgcp
ccm-manager music-on-hold
!
mgcp
mgcp call-agent 192.168.4.12 service-type mgcp version 0.1
mgcp dtmf-relay voip codec all mode out-of-band
mgcp rtp unreachable timeout 1000 action notify
mgcp modem passthrough voip mode nse
mgcp ip qos dscp cs3 signaling
mgcp package-capability rtp-package
mgcp package-capability sst-package
mgcp package-capability pre-package
no mgcp package-capability fxr-package
no mgcp timer receive-rtcp
mgcp sdp simple
mgcp fax t38 inhibit
mgcp rtp payload-type g726r16 static
mgcp bind control source-interface Loopback0
mgcp bind media source-interface Loopback0
!
mgcp profile default
!
!
dial-peer voice 10 pots
service mgcpapp
port 1/0/0
!
dial-peer voice 11 pots
service mgcpapp
port 1/0/1
!
dial-peer voice 12 pots
service mgcpapp
port 1/0/2
!
dial-peer voice 13 pots
service mgcpapp
port 1/0/3
!
dial-peer voice 14 pots
service mgcpapp
port 1/0/4
!
dial-peer voice 15 pots
service mgcpapp
port 1/0/6
!
dial-peer voice 17 pots
service mgcpapp
port 1/0/7
!
dial-peer voice 16 pots
service mgcpapp
port 1/0/5
!
dial-peer voice 3001 voip
tone ringback alert-no-PI
description *** Testint ISP OUTGOING FOR LOCAL CALLS ***
translation-profile outgoing DN-to-E164-srst
preference 10
destination-pattern 12122067379
session protocol sipv2
session target ipv4:120.100.1.10
dtmf-relay rtp-nte digit-drop
codec g711ulaw
no vad
!
dial-peer voice 9004 voip
description ** TO CM PRIMARY FOR DID piloto **
preference 1
destination-pattern 1358
session target ipv4:192.168.4.11
voice-class codec 1
dtmf-relay h245-alphanumeric
ip qos dscp cs3 signaling
no vad
!
dial-peer voice 9005 voip
description ** TO CM Secondary FOR DID piloto **
preference 2
destination-pattern 1358
session target ipv4:192.168.4.12
voice-class codec 1
dtmf-relay h245-alphanumeric
ip qos dscp cs3 signaling
no vad
!
dial-peer voice 999 voip
description SIP INCOMING DIALPEER
incoming called-number .
dtmf-relay rtp-nte
codec g711ulaw
!
!
num-exp 12126169799 1358
num-exp 2122067379 12122067379
gateway
timer receive-rtp 1200
!
!
!
gatekeeper
shutdown
!
!
=====================
Well we can establish incoming and outgoing calls without any problem during this testing stage, but we only get incoming voice.
We did not get outgoing voice to Voice Gateway.
We checked with ISP, and we see RTP traffic from ISP to Cisco 2911Voice Gateway, but we did not see any RTP packets from Voice Gateway to ISP.
As a matter of fact, we did not see any RTP packets arriving to Voice gateway from internal network.
Could be a routing problem???
Do Internal CUCM and Ip Phones require routing access to ISP's SIP server? As I understood internal devices only need to know how to arrive to Cisco2911 Voice gateway, so it can work as a Proxy and route traffic towards SIP server???
Thank you
