I have a 3com NBX100 IP phone system and it keeps slowing down. The calls become garbled and the intercom calls as well are garbled. After a reboot it is fine. Have already called the phone company and they say it is not the local lines doing this. They routed over the phone system and it was OK. I have replaced the line card processor. Same result. Not sure if anyone there has experience with the 3com NBX 100.