Specifications

Cisco Unified Wireless IP Phone 7921G Series Deployment Guide 23
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/port/7_1_2/CCM_7.1.2PortList.pdf
Configuring QoS in Cisco Unified Communications Manager
The SCCP DSCP values are configured in the Cisco Unified Communications Manager enterprise parameters. Cisco Unified
Communications Manager uses the default value of CS3 to have devices set the DSCP marking for SCCP packets as shown in
the Enterprise Parameters Configuration page.
Configuring QoS Policies for the Network
Set up QoS policies and settings for the following network devices.
Configuring Cisco IOS Access Points
Use the following QoS policy on the Cisco IOS access point (AP) to enable DSCP to CoS (UP) mapping. This allows RTP
packets to be placed into the voice queue, if those packets are marked correctly, when received at the access point level.
class-map match-all RTP
match ip dscp ef
class-map match-all SCCP
match ip dscp cs3
!
policy-map Voice
class RTP
set cos 6
class SCCP
set cos 4
!
interface dot11radioX
service-policy input Voice