I have an IP 500 office system with vlans for data and voice (vlan1 = data, vlan 10 =voice)
when i put the phones on the data side everything works fine
when i try to have the phones use dhcp thiings get real spooky.
any phoine with a dhcp config will reboot about every 60 to 90 seconds.
the phones do register with dhcp
the phones do say they are downloading the bin file and scr files from the tftp server
the tftp server can ping any and all phones on dhcp (as long as they are not in process of rebooting)
phones work fine for 60 to 90 seconds then reboot.
IP 500 phone system
handsets are 5610SW ip
cisco 3560 POE switches
I will be honest, I don't even know were to start guessing.