I'm having trouble with two newly purchased RPS 2300. When they go into power supply mode the fans start. But when the main power returns, the fans continue to run loud for hours. What to do? Thanks

Hi guys,I have two Cisco IP phones (one 7911 and one 7961) which I can not in any way get the firmware to load, sip or sscp they are.Basically they start up, see the tftp server, look for the term61 or term11 loads file, find it and instead of contin...