I will do my best to make this clear and short as possible. I have a router: Linksys WRT54G/GS/GL I have PAP2T Voip Adapter Tomato version: 1.28 My maximum upload speed is: 30KB/sec My maximum download speed is: 300kb/sec My problem is: When I speak to somebody using my PAP2T VOIP Adapter, and at the same time I either try to load a website or have a utorrent running and as a result THE OTHER SIDE hears my voice choppy, but I hear them fine. So obviously something is wrong with the way the router distributes the Upload bandwidth. What I did to try to fix the problem: Under QOS settings, I added PAP2T adapter's MAC address and set the priority to HIGHEST. But for some reason, when using the phone, the router wouldn't detect it as Highest priority, it was labeled under "Low". So then instead of specifying the PAP2 Adapter's MAC address, I used its IP and I put it under SOURCE IP. That did the trick and the router detects the PAP2T Adapter under "HIGHEST". I got that figured out. But that didn't fix the problem. The other side still hears my voice choppy if I try to load a website or if I have utorrent running. I was having hard time telling the router how to distribute the upload speed according to my needs. So if somebody can tell me what I did wrong. Here are the screenshots of the settings: And for some reason the "LOWEST" Class manages to go over 85%. The screenshot here shows how it's at 79%. But it was able to reach 85%-90% Now, I don't care if the "LOWEST" class goes so high. I just need to make sure that "HIGHEST" class gets the highest priority, and gets all the bandwidth it needs. Is there a way to reserve 10KB/sec Upload just for the VOIP Adapter? Anyways, I will follow any method as long as it works. Please help me out. Thanks.