[ianc]

Wayne, you can also avoid the QoS business by limiting the bandwidth used by certain IP addresses on a Cisco router by using the 'rate-limit' command. You specify the addresses to be limited with an access-list. You could use this to limit the bandwidth used by your non-VOIP addresses, leaving some left over for VOIP.

Don't know how well you can get around in the IOS, but the command in global config mode would look something like:

rate-limit input access-group 101 8000000 375000 500000 conform-action transmit exceed-action drop

Access-group 101 refers to access-list 101, which would contain your addresses to be limited. The numbers represent average and burst rates and can be tweaked as you like.

Let me know if you have more questions,

ianc