FirstSource,
I assume that you are referring to the IP Connection settings and yes you would want to make sure that is set to 184, but you also want to set the Audio RTP Type of Service as well so the audio also is set for QoS.
System > Devices and Feature Codes > IP Connections > P6xxx > Audio RTP Type of Service: 184
System > Devices and Feature Codes > IP Connections > P6xxx > Data Type of Service: 184
We always keep these set in our default database that way so when calls leave the network they have a better chance of trying to maintain some semblance of QoS.
Thanks,
TE