"device-traffic-class=voice" from FreeRADIUS?

[craig]

Hi,

I'm  looking to setup "freeradius-3.0.4-6.el7.x86_64" on Centos 7 with
802.1x auth over LAN.

The challenge is that I'd like to use Cisco phones and laptops behind
those phones. The doco I've been reading (designed for Cisco ACS)
suggest that the radius server needs to respond with a "RADIUS
Access-Accept" message containing "device-traffic-class=voice".

ref:
http://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Security/TrustSec_1-99/IP_Tele/IP_Telephony_DIG.html#93482

Any way I can do this with FreeRADIUS?

Regards,

Craig