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Cisco Hoot and Holler over IP
Configuration Examples
VC-845
Cisco IOS Voice, Video, and Fax Configuration Guide
Configuring the Second Router
In router Costello (Figure 134), the E&M phone is connected to voice port 3/1/1. Router Costello uses
the same configuration as Abbott, except for the following differences:
• The virtual interface must be on a different subnet from the first router.
• The IP address in the Ethernet configuration must be different from that of the first router.
• The voice port and slot should match the router’s hardware configuration.
hostname Costello
!
ip multicast-routing
!
voice class permanent 1
signal timing oos timeout disabled
signal keepalive 65535
!
interface Vif1
ip address 2.2.2.2 255.0.0.0
ip pim sparse-dense-mode
!
interface Ethernet0/0
ip address 3.3.3.2 255.0.0.0
ip pim sparse-dense-mode
!
ip route 1.0.0.0 255.0.0.0 3.3.3.1
!
voice-port 3/1/1
voice-class permanent 1
timeouts wait-release 3
connection trunk 222
music-threshold -30
operation 4-wire
!
dial-peer voice 1 voip
destination-pattern 111
session protocol multicast
session target ipv4:237.111.0.111:22222
!
Note The multicast session for this port, shown in the session target command, must match the multicast
session configured on the first router.
The codec configured for this dial peer must match the codec for the dial peer on the first router.
Both routers must be configured to use the same connection trunk and destination pattern.
Verifying the Configuration
If you have configured your routers by following these examples, you should now be able to talk over
the telephones. You can also use the show dial-peer voice command on each router to verify that the
data you configured is correct.
To verify that an audio path has been established, use the show call active voice command. This
command displays all active voice calls traveling through the router.