This document covers how to implement the IPv4 & IPv6 dual stack mode on CME 8.0. This will help you if you have multiple partners connected across ipv6 & ipv4 network and you can Make, Receive calls to your network using any of the IP. This covers the configuration part on the CME to enable dual stack mode.
Configuring Ipv4 & Ipv6 on CME 8.0
CME Image on 2811 Router
boot system flash c2800nm-ipvoicek9-mz.150-1.XA1.bin
Configure the ipv6 & ipv4 dhcp pool for the IP Phones:
Configure both the ipv6 & ivp6 on the Interface configuration
description #### Internal Interface ####
ip address 184.108.40.206 255.255.255.248
ipv6 address 3001:E50:0:15::1/64
ipv6 dhcp server Call-manager
Telephony-service configuration for CME
# voice service voip
bind control source-interface FastEthernet0/1
sccp ccm group 1
associate ccm 1 priority 1
protocol mode dual-stack preference ipv6
ip source-address 220.127.116.11 port 2000
ip source-address 3001:E50:0:15::1
service phone settingsAccess 1
system message CCME 8.0
cnf-file location flash:
load 7911 SCCP11.8-3-3SR2S
load 7970 SCCP70.9-0-2SR1S
max-conferences 16 gain -6
transfer-system full-consult secondary-dialtone 9
create cnf-files version-stamp Jan 01 2010 00:00:00
Note:- CME with dual-stack Mode and IPV6 preference. This "dual-stack mode" will enable CME to work on both ipv6&ipv4 and you can set any IP version as preference.
Note:- Both ipv4 & ipv6 source address configured for communication
Configure ephone & ephone-dn
Dial-Peer Configuration on CME for Ipv4 & Ipv6 Session Target
Create the Dial-peers using ipv4 / ipv6 depending upon the type of external network IP, as your CME will work on both ipv4 & ipv6
dial-peer voice 18 voip
description carrier1 ipv4
session target ipv4:18.104.22.168
incoming called-number .T
dial-peer voice 19 voip
description carrier2 ipv6
session protocol sipv2
session target ipv6:[5001:630:12:101::50]
incoming called-number .T
voice-class codec 1
Ephone Registration output to show, Ephone has been registered using both ipv6 & ivp4 address.
#show ephone registered
Ephone-1 Mac: 0014.789C.3C0E TCP socket: activeLine:0 whisperLine:0 REGISTERED in SCCP ver 19/17 max_streams=5
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