Patent ID: 6320866
Filing Date: 2001-11-20
Classification: H04Q

Abstract:
A network termination (NT) for a communications network (NET), said network termination (NT) comprising a power supply (USV) connectable to an external power source (POW), and said network termination being capable of sending a message signal (SIG) having a payload and a frame, comprising:means (SAD) for detecting a power failure of the external power source (POW);means (USV) for maintaining power for a predetermined period of time in the event of a power failure; andmeans (BMG) for sending an error message (FM) in the payload of the message signal (SIG) to at least one subscriber terminal which is separate from the network termination (NT), wherein the error message (FM) overwrites at least a portion of the payload of the message signal (SIG).