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đˇ Cisco Unified Border Element â Configuration Guide
Complete guide for configuring WOCOM Flexible SIP Trunk with Cisco CUBE routers.
đ SIP Registration & Authentication
How WOCOM authenticates your SIP trunk connection.
WOCOM requires a SIP REGISTER request with digest authentication. Credentials (username and password) are provided by WOCOM and must be configured in the Cisco CUBE sip-ua section.
Outgoing calls use Digest Authentication per SIP RFC 3261. This ensures the authenticity and integrity of SIP signaling, guarding against security threats.
đ§ Compatible Cisco Hardware
Cisco router platforms supported for CUBE configurations with WOCOM.
đ Network Configuration Overview
How your Cisco CUBE connects your internal PBX to the WOCOM SIP network and PSTN.
Calls originate from endpoints registered to your local IP PBX, are directed to the Cisco CUBE acting as an intermediary, then routed through the SIP trunk to the WOCOM SBC for termination to the PSTN.
đ Device Roles
Role of each component in the network topology.
đˇ Cisco CUBE
Session border element that bridges your internal PBX to the WOCOM SIP network. Handles SIP registration, codec negotiation, and call routing.
đĨī¸ IP PBX (CUCM)
Your local phone system. Cisco Unified Communications Manager 12.5.1 recommended; any currently supported version is permissible.
đĄī¸ Firewall
Monitors and controls network traffic. Must permit SIP signaling (port 5060) and RTP media (ports 10000â20000) between CUBE and WOCOM.
đĸ WOCOM SBC
WOCOM's Session Border Controller receives SIP trunk connections and routes calls to the PSTN for termination.
âī¸ CUBE Configuration â Base Setup
Initial router configuration including hostname, DNS, and interfaces.
service timestamps debug datetime msec
service timestamps log datetime msec
!
hostname WOCOM-CUBE
!
logging buffered 51200 warnings
enable secret "yoursecretpassword"
!
ip domain name wocomja.com
ip host iadvoip1.wocomja.com 50.62.141.178
ip name-server 50.62.141.121
ip name-server 50.62.14.122
!
ip cef
ip source-route
!
! ââ Interfaces ââ
interface GigabitEthernet0/0
description WAN-Interface-Internet
ip address 10.0.0.3 255.255.255.252
duplex auto
speed auto
!
interface GigabitEthernet0/1
description LAN-Interface-PBX-Network
ip address 172.17.1.3 255.255.255.0
duplex auto
speed auto
!
ip route 0.0.0.0 0.0.0.0 10.0.0.1 name Default_GW
GigabitEthernet0/0 is your internet-facing interface; GigabitEthernet0/1 connects to your PBX network.đ Voice Service & Codec Configuration
Configure voice service settings and codec preferences for optimal call quality.
no ip address trusted authenticate
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
no supplementary-service sip moved-temporarily
no supplementary-service sip refer
fax protocol t38 version 0 ls-redundancy 0 hs-redundancy 0 fallback none
sip
outbound-proxy dns:iadvoip1.wocomja.com
!
! ââ Codec Class for Outbound (WOCOM) ââ
voice class codec 300
codec preference 1 g729r8
codec preference 9 g711ulaw
codec preference 10 g711alaw
!
! ââ Codec Class for Inbound ââ
voice class codec 301
codec preference 1 g729br8
codec preference 2 g729r8
codec preference 9 g711ulaw
codec preference 10 g711alaw
đ Dial Peer Configuration
Configure dial peers for routing inbound and outbound calls between your PBX and WOCOM.
dial-peer voice 300 voip
translation-profile outgoing JM/USA/CAN Calling
destination-pattern .T
session protocol sipv2
session target sip-server
voice-class codec 300
dtmf-relay rtp-nte
!
! ââ Inbound: DID #1 from WOCOM ââ
dial-peer voice 302 voip
description WOCOM Assigned DID #1
incoming called-number 8760000000
voice-class codec 301
dtmf-relay rtp-nte
!
! ââ Route DID #1 to PBX ââ
dial-peer voice 8238 voip
description WOCOM Assigned DID #1
destination-pattern 8760000000
session protocol sipv2
session target ipv4:172.17.1.4
dtmf-relay rtp-nte
codec g711ulaw
!
! ââ Inbound: DID #2 from WOCOM ââ
dial-peer voice 301 voip
description WOCOM Assigned DID #2
incoming called-number 8760000001
voice-class codec 301
dtmf-relay rtp-nte
!
! ââ Route DID #2 to PBX ââ
dial-peer voice 500 voip
description WOCOM Assigned DID #2
destination-pattern 8760000001
session protocol sipv2
session target ipv4:172.17.1.4
voice-class codec 300
voice-class sip outbound-proxy ipv4:172.17.1.4
dtmf-relay rtp-nte
8760000000 and 8760000001 with your actual WOCOM-assigned DID numbers. Replace 172.17.1.4 with your PBX IP address. Add additional inbound/outbound dial-peer pairs for each DID.đ SIP-UA â Registration & Authentication
The most critical section â configure SIP credentials and registration with WOCOM.
credentials username 8760000000 password yourwocompassword realm iadvoip1.wocomja.com
hookflash-info
authentication username 8760000000 password yourwocompassword
no remote-party-id
set pstn-cause 47 sip-status 486
retry invite 2
retry response 3
retry bye 3
retry prack 6
timers expires 300000
!
! ââ SIP Registration to WOCOM ââ
registrar dns:iadvoip1.wocomja.com expires 3600
sip-server dns:iadvoip1.wocomja.com
connection-reuse
8760000000 with your WOCOM-assigned phone number and yourwocompassword with your WOCOM account secret. Both the credentials and authentication lines must use the same username and password.đ Full Configuration Reference
Complete IOS configuration for copy-paste. Replace all placeholder values with your actual credentials.
Our technical support team can assist with CUBE configuration, SIP registration troubleshooting, and advanced voice routing.