VoIP
From wiki.IPBRICK.COM
Enable precedence 5 (DSCP) in all voice packets (IPBrick v6.0)
Change the following file /home1/_AsteriskConfs/sip_main.conf with this content:
tos_sip=cs3 tos_audio=ef tos_video=af41 tos_text=af41 cos_sip=3 cos_audio=5 cos_video=4 cos_text=3
In the console, execute the following command:
rasterisk -rx 'sip reload'