I have a Linksys SRW224G4P with POE and I have 10 Cisco 7941 phones plugged into this. When make calls internal or external the calls drop anywhere from 1 minute to 1 hour and I get a message on the phones that says Temp Fail and UCM down Features disasbled. I use the linksys for phone training in conference rooms. The linksys is plugged into a catalsyt 4506. If I plug the phones into the catalyst i have no problems at all so I know its a linksys issue. Can anyone explain???