We have 1 ZyXel ZyWALL USG 100 firewall and 2 ZyXel ZyWALL USG 20W firewalls.
Our main office is the USG 100
Our satellite offices have the USG 20W 's
We have full control of both.
We are NOT using VPN between the firewalls.
For the purpose of this discussion, let's forget VPN.
We are having a problem where the VOIP phones at the satellite locations are having audio dropouts.
I've spoken with the phone vendor and a few other people and they suggest we prioritize traffic so VOIP ALWAYS gets priority.
If possible, I don't want to have to "carve off" dedicated bandwidth for this because they aren't using the phones 90% of the time. So in a perfect world - anytime there is VOIP traffic, it gets priority over EVERYTHING.
I did some additional research and found that the ZyWall's have a feature called App Patrol which sounds like it can help with this - I signed up for the trial service so we have that available as well.
Can anyone help me figure out how to prioritize the traffic?