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Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
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Chapter 7 Configuring the Switch Ports
Configuring Voice Ports
Configuring Voice Ports to Carry Voice and Data Traffic on Different VLANs
The Cisco 7960 IP Phone has an integrated three-port 10/100 switch that can connect to a PC or other
device. You can configure a switch port to instruct the phone to forward voice and data traffic on
different virtual LANs (VLANs).
In this configuration, VLAN 1 carries data traffic, and VLAN 2 carries voice traffic. In this
configuration, you must connect all Cisco IP Phones and other voice-related devices to switch ports that
belong to VLAN 2.
Beginning in privileged EXEC mode, follow these steps to configure a port to receive voice and data
from a Cisco IP Phone in different VLANs:
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface Enter interface configuration mode, and enter the port to be configured.
Step 3
switchport priority default (0) Assign an IEEE 802.1p priority to untagged traffic that is received on the
switch port. The Cisco IP Phone forwards this traffic through the native
VLAN, VLAN 1.
Step 4
switchport voice vlan (2) Instruct the Cisco IP Phone to forward all voice traffic through VLAN 2. The
Cisco IP Phone forwards the traffic with an 802.1p priority of 5.
Step 5
end Return to privileged EXEC mode.
Step 6
show interface interface switchport Verify the configuration.
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