My BT Home Hub Broadband Light Keeps Flashing Orange When Some One Calls Or Ends A Call.Help Me Please?

well when some one calls the house fone, my bt home hub broadband light goes orange and it keeps flashing, i have tried restarting the hub but it still stays the same i have also tried removing the broadband wire and puting it back on after 2 minutes. Please help this is urgent! thank you!! x