DE102015122554B4 - Monitoring device for monitoring a communication connection - Google Patents

Abstract

A monitoring device (100) for monitoring a communication connection (101) between a communication device (103) and a communication network (105), the communication device (103) having a data interface (107) for communicating with the communication network (105), comprising: a communication interface ( 109) connectable to the data interface (107) of the communication device (103), wherein the communication interface (109) is adapted to monitor a communication status of the data interface (107), the communication interface (109) being further configured to provide a status signal, which indicates the communication status of the data interface (107) to transmit at continuous time intervals via the communication network (105) to a control center (111), and wherein the communication interface (109) is further adapted to receive an acknowledgment signal from the control center (15) in response to the transmission of the status signal ( 111) to receive over the communication network (105); and a processor (113) configured to detect a failure of the communication link (101) in response to receiving the acknowledgment signal.

Description

The present invention relates to the field of monitoring communication links between communication devices and communication networks.

A status of a communication connection in a communication network, which is regulated by means of an EWSD or S12 switching system, can be monitored efficiently via a control center. The control center can detect a connection setup, a connection termination or a connection termination and inform a user about a malfunction of the communication link.

In a modern IP-based communication connection, however, such monitoring of a status of the communication connection, for example a communication connection between a communication device such as a router and a communication network such as the Internet, via the control center is difficult.

In the DE 10 2009 000 479 A1 discloses a method for identifying malfunctions, wherein the malfunctions within the subscriber line of a network infrastructure, in particular in a DSL infrastructure, between a terminal of the network operator, in particular the network node (DSLAM), and a terminal device of the subscriber, in particular a subscriber line, occur.

In the EP 1 750 391 A1 discloses a method of operating at least one manager (MANAGER) and at least one agent (AGENT) management system, wherein the manager (MANAGER) subscribes to messages to be sent by the agent (AGENT) to the manager (MANAGER).

In the EP 2 575 335 A1 For example, there is disclosed a diagnostic engine for remotely analyzing a fault of a telecommunications line configured to be coupled to an end of the line.

It is therefore the object of the present invention to provide an efficient concept for monitoring a communication connection between a communication device and a communication network.

This object is achieved by articles having the features according to the independent claims. Advantageous embodiments of the invention are the subject of the figures, the description and the dependent claims.

The invention is based on the realization that the above object can be achieved by a monitoring device which monitors a communication status of a data interface of a communication device and which is designed to send a status signal indicating the communication status of the data interface to a control center via the communication network and in response to the transmission of the status signal, receiving an acknowledgment signal from the control center via the communication network, wherein the monitoring device is further configured to detect a communication link malfunction in response to receiving the acknowledgment signal.

According to a first aspect, the invention relates to a monitoring device for monitoring a communication connection between a communication device and a communication network, wherein the communication device has a data interface for communicating with the communication network, with a communication interface, which is connectable to the data interface of the communication device, wherein the communication interface is formed to monitor a communication status of the data interface, wherein the communication interface is further configured to transmit a status signal indicating the communication status of the data interface to a control center via the communication network, and wherein the communication interface is further configured to receive an acknowledgment signal from to receive the control center via the communication network; and a processor configured to detect a communication link failure in response to receiving the acknowledgment signal. As a result, the advantage is achieved that an efficient monitoring of the communication connection by the monitoring device can take place. A malfunction of the communication link, which prevents transmission and / or reception of data via the communication network, can be detected efficiently with the monitoring device.

The communication device can be an IP device that is designed for IP-based communication, for example IP telephony or Voice-over-IP. The communication device may be an IP router, a DSL router, an LTE router, a UMTS router, or a network component connected to a router, such as a network switch or a repeater.

The data interface of the communication device may have a plurality of ports or interfaces, which in particular for simultaneous connection with a plurality of terminal devices, in particular other communication devices, may be formed. The data interface can be designed as a network switch or comprise a network switch.

The communication interface may be a wireless or wired communication interface. The communication interface may include one of the following communication interfaces: WLAN communication interface, Ethernet communication interface, Bluetooth communication interface, TAE communication interface, RJ communication interface, in particular RJ45 communication interface, USB communication interface.

The communication network may be a local communication network or a global communication network, in particular the Internet. The communication network can be designed for IP-based communication, for example by means of TCP / IP network protocols. The communication network may be a telecommunications network, in particular a telephone network or a mobile radio network. The telecommunications network may be a Next Generation Network (NGN) or a Next Generation Mobile Network (NGMN).

The communication status may be a status or a status change of the communication connection, such as a connection setup, a connection termination, or a connection termination.

The processor may be a microprocessor and may include a memory. Furthermore, the processor, in particular in a software solution, can be integrated into a data processing device connected to the monitoring device, for example a desktop computer or a laptop. The monitoring device or parts of the monitoring device can be executed as software on the data processing device.

In one embodiment, the processor is configured to detect the communication link failure in the absence of receiving the acknowledgment signal. Thereby, the advantage is achieved that a malfunction of the communication link, which prevents transmission and / or reception of data via the communication network, can be detected efficiently.

According to one embodiment, the communication interface is designed to transmit the status signal in continuous time intervals via the communication network to the control center. As a result, the advantage is achieved that a continuous monitoring of the communication connection can be achieved by the monitoring device.

The communication interface may be configured to transmit the status signal every 1 s, 2 s, 3 s, 4 s, 5 s, 10 s, or 15 s. A maximum allowable time gap for the transmission of the status signal can be 20 s. There may be a leased-line connection between the monitoring device and the control center via which the status signal and / or the acknowledgment signal may be transmitted.

According to one embodiment, the communication interface is designed to detect the disturbance of the communication connection when a time interval between the transmission of the status signal and the reception of the acknowledgment signal reaches a threshold value. The threshold value may be less than or equal to the time intervals between two transmitted status signals. In this way it can be achieved that an acknowledgment signal can be unambiguously assigned to a previously sent status signal.

According to one embodiment, the processor is configured to output a fault signal when the communication link is detected as being defective.

According to one embodiment, the monitoring device has an optical display, which can be controlled by the processor upon detection of the fault with the fault signal for optically displaying the fault of the communication link. This provides the advantage that a user can be informed efficiently about the present fault.

According to one embodiment, the optical display comprises a lighting device, in particular a number of LEDs, wherein the lighting device is designed to emit a light signal in a light color and / or a luminous frequency and / or a light brightness to indicate the disturbance of the communication link. This provides the advantage that a user can be informed efficiently about the present fault.

The illumination device can also be designed to indicate an operating state of the monitoring device, for example a concern of a supply voltage of the monitoring device.

According to one embodiment, the monitoring device has a power supply monitoring device, which on a power supply of the communication device is connectable and configured to monitor a status of the power supply, wherein the lighting device is configured to emit another light signal in response to detection of a power failure by the power supply monitoring device to indicate the power failure. As a result, the advantage is achieved that an efficient monitoring of the power supply of the communication device can be carried out by the monitoring device. The processor may include the power supply monitor.

The power supply monitoring device may further be configured to control the lighting device upon detecting the failure of the power supply with a drive signal. The illumination device can be configured to emit the further light signal in response to the drive signal.

The monitoring device can have an energy store, in particular a rechargeable battery, for supplying energy in the event of a power failure. With the energy storage, a control of the lighting device and an indication of the light signal can be ensured in case of power failure.

According to one embodiment, the data section operates according to one of the following communication technologies: DSL, VDSL, GSM, UMTS, LTE, IP-based communication such as Voice-over-IP, wherein the communication interface is adapted to detect the status of the communication connection for at least one of these communication technologies , The communication connection from the communication network via the data interface to the communication interface can be an IP connection (TCP / IP).

According to one embodiment, the status signal comprises the following characteristics: device ID of the monitoring device, IP address of the control center, port of the control center. The device ID can be used to uniquely authenticate the monitoring device.

According to one embodiment, the monitoring device comprises a memory for storing the status signal and / or the characteristics of the status signal. A local IP address of the monitoring device can also be stored in the memory if the local IP address is not assigned via DHCP. The memory can be a flash memory. Furthermore, the processor may include the memory.

According to one embodiment, the communication device comprises the monitoring device. Thereby, the advantage is achieved that a communication device is created, which can efficiently monitor its communication connection to a communication network.

According to a second aspect, the invention relates to a control center for monitoring a communication connection between a communication device and a communication network, wherein a monitoring device can be connected to the communication device, with a communication interface, which is configured to receive a status signal from the monitoring device via the communication network, wherein the Status signal indicates a communication status of a data interface of the communication device in the communication network, wherein the communication interface is further configured to send an acknowledgment signal to the monitoring device via the communication network in response to receiving the status signal. As a result, the advantage is achieved that an efficient monitoring of the communication connection can be carried out by the control center.

The control center may comprise a control center device, in particular a computer, a server or a computer network. The control center device can be designed to execute control center software. The control center can be a communication center for monitoring and controlling the communication network.

The communication interface of the control center may include a receiver for receiving the status signal. The communication interface of the control center can be a wireless communication interface or a wired communication interface, for example an Ethernet communication interface. The communication interface may be configured for communication using one of the following communication technologies: DSL, VDSL, GSM, UMTS, LTE, IP-based communication such as Voice-over-IP.

The communication network may be a local communication network or a global communication network, in particular the Internet. The communication network can be designed for IP-based communication, for example by means of TCP / IP network protocols. The communication network may be a telecommunications network, in particular a telephone network or a mobile radio network. The telecommunications network may be a Next Generation Network (NGN) or a Next Generation Mobile Network (NGMN).

The communication status may be a status or a status change of the communication connection, such as a connection setup, a connection termination, or a connection termination.

According to one embodiment, the control center comprises a processor, which is designed to detect a malfunction of the communication connection between the communication device and the communication network in response to receiving the status signal, wherein the processor is configured to output a fault signal upon a detected fault of the communication link.

According to one embodiment, the control center comprises a further communication interface, which can be controlled by the processor with detected disturbance with the disturbance signal, and which is designed, in response to the disturbance signal to send a warning message to another communication device. This achieves the advantage that a user can be informed efficiently about a malfunction of the communication connection.

The further communication device may be a mobile communication device, in particular a smartphone or a laptop. The control center can be configured to send out the warning message as an e-mail, fax, SMS or telephone notification, in particular automatically send out.

According to one embodiment, the control center comprises a display, which can be controlled by the processor upon detection of the fault with the fault signal for indicating the fault of the communication link. This has the advantage that a user can be efficiently informed on the part of the control center about a malfunction of the communication link.

The display may be part of a computer or a mobile communication device, such as a smartphone. The display may include a display or a touch display. In the display, a plurality of communication devices of the communication network may be listed in list form. Communication devices for which the processor detects a fault can be marked in the list by a colored highlighting.

The invention can be implemented in software and / or hardware.

Further embodiments of the present invention will be described with reference to the accompanying drawings. Show it:

1 a schematic representation of a monitoring device;

2 a schematic representation of a communication device with a connected monitoring device;

3 a schematic representation of a control center; and

4 schematic representations of a control center, a communication device and a monitoring device.

1 shows a schematic representation of a monitoring device 100 for monitoring a communication connection 101 between a communication device 103 and a communication network 105 according to an embodiment, wherein the communication device 103 a data interface 107 to communicate with the communication network 105 having.

The monitoring device 100 includes a communication interface 109 which with the data interface 107 of the communication device 103 is connectable, the communication interface 109 is formed, a communication status of the data interface 107 monitor, using the communication interface 109 is further configured, a status signal, the communication status of the data interface 107 indicating over the communication network 105 to a control center 111 and the communication interface 109 is further configured, in response to the transmission of the status signal, an acknowledgment signal from the control center 111 over the communication network 105 to recieve; and a processor 113 , which is formed, a disturbance of the communication link 101 in response to receiving the acknowledgment signal.

The communication device 103 may be an IP device, which is designed for IP-based communication, such as IP telephony or Voice-over-IP. The communication device may be an IP router, a DSL router, an LTE router, a UMTS router, or a network component connected to a router, such as a network switch or a repeater.

The data interface 107 of the communication device 103 may comprise a plurality of terminals or interfaces, which in particular for simultaneous connection to a plurality of terminal devices, in particular further communication devices, may be formed. The data interface 107 may be configured as a network switch or comprise a network switch.

The communication interface 109 Can be a wireless or wired Be communication interface. The communication interface 109 may include any of the following communication interfaces: WLAN communication interface, Ethernet communication interface, Bluetooth communication interface, TAE communication interface, RJ communication interface, in particular RJ45 communication interface, USB communication interface.

The communication network 105 may be a local communication network or a global communication network, in particular the Internet. The communication network 105 can be designed for IP-based communication, for example using TCP / IP network protocols. The communication network 105 may be a telecommunications network, in particular a telephone network or a mobile network. The telecommunications network may be a Next Generation Network (NGN) or a Next Generation Mobile Network (NGMN).

The communication status may be a status or a status change of the communication connection, such as a connection setup, a connection termination, or a connection termination.

The processor 113 may be a microprocessor and may include a memory. Furthermore, the processor can 113 in particular in a software solution, in a to the monitoring device 100 connected data processing device, such as a desktop computer or a laptop to be integrated. The monitoring device 100 or parts of the monitoring device 100 can be run as software on the data processing device.

In one embodiment, the processor is 113 trained, the disturbance of the communication link 101 in case of failing to receive the confirmation signal. Furthermore, the processor can 113 be formed when detected disturbance of the communication link 101 to issue a fault signal.

The monitoring device 100 in 1 further includes an optical display 115 , The optical display 115 may include a lighting device.

The illumination device can be designed to emit a light signal in a light color and / or a luminous frequency and / or a light brightness to the disturbance of the communication link 101 display. Furthermore, the illumination device can be designed to use the light signal to indicate an operating state of the monitoring device 100 to indicate, for example, a concern of a supply voltage.

For this purpose, the illumination device can comprise a number of LEDs, for example a green and a yellow LED. Blinking or continuous illumination of the green LED can ensure an undisturbed operating state when the supply voltage of the monitoring device is applied 100 Show. In case of a fault in the communication connection 101 A flashing or continuous yellow LED may indicate the fault.

The optical display 115 may further comprise a display, in particular a touch display. The optical display 115 may be formed upon detected disturbance of the communication link 101 to display a fault message in the display.

According to one embodiment, the visual display is 115 through the processor 113 when detected disturbance with the disturbance signal for visually indicating the disturbance of the communication link 101 controllable.

For a clear identification and assignment of the monitoring device 100 or the data interface 107 or the communication device 103 in the control room 111 includes the status signal of the monitoring device 100 at least one of the following characteristics: device ID of the monitoring device 100 , IP address of the control center 111 or a receiver in the control center, port of the control center 111 or the recipient in the control center 111 ,

The monitoring device 100 in 1 also includes a memory 121 , The status signal and / or the characteristics of the status signal may be stored in the memory 121 be deposited.

Furthermore, in the memory 121 a local IP address of the monitoring device 100 be saved. The local IP address may be either default or may be from the supervisor 100 via DHCP. The characteristics of the status signal and / or the status signal may be before the first startup of the monitoring device 100 in the store 121 be deposited.

According to one embodiment, the memory is 121 a flash memory. Furthermore, the processor can 113 the memory 121 include.

The data section 107 of the communication device 103 can work according to one of the following communication technologies: DSL, VDSL, GSM, UMTS, LTE, IP-based communication such as Voice-over-IP. The communication interface 109 can be trained, the status of communication link 101 for at least one of these communication technologies.

The communication interface 109 can also be configured, the status signal at regular intervals over the communication network 101 to the control center 111 send out. The communication interface 109 may be configured to transmit the status signal every 1 s, 2 s, 3 s, 4 s, 5 s, 10 s, or 15 s. A maximum allowable time gap for the transmission of the status signal can be 20 s.

According to one embodiment, there is between the monitoring device 100 and the control center 111 a leased-line connection, via which the status signal and / or the acknowledgment signal can be sent.

The communication interface 109 may further be formed, the disturbance of the communication link 101 detect when a time interval between the transmission of the status signal and the reception of the confirmation signal reaches a threshold value. The threshold value may be less than or equal to the time intervals between two transmitted status signals in order to enable a clear assignment of the acknowledgment signal to a previously transmitted status signal.

The monitoring device 100 in 1 further comprises a power supply monitor 117 which are connected to a power supply 119 of the communication device 103 is connectable.

The power supply monitoring device 117 can be a status of power supply 119 of the communication device 103 and / or the monitoring device 100 monitor and a power failure 119 to capture.

The optical display 115 or the illumination device of the optical display may be configured in response to detecting a failure of the power supply 119 by the power supply monitor 117 to send another light signal to the disturbance of the power supply 119 display.

The further light signal can have a further light color and / or a further light frequency and / or a further light brightness.

The processor 113 can the power supply monitoring device 117 include. Furthermore, the power supply monitoring device 117 be formed, the visual display 115 or the lighting device upon detection of the fault of the power supply 119 to control with a drive signal. The illumination device can be configured to emit the further light signal in response to the drive signal.

The monitoring device 100 can have an energy storage, in particular a battery, for power supply in case of power failure. With the energy storage, a control of the lighting device and an indication of the light signal can be ensured in case of power failure.

The power supply 119 can in addition to the power supply of the monitoring device 100 be educated.

According to a further embodiment, the processor comprises 113 the power supply monitoring device 117 ,

2 shows a schematic representation of the communication device 103 with connected monitoring device 100 according to one embodiment.

The communication device 103 in 2 is a router, with a number of data interfaces 201-1 . 201-2 . 201-3 , to which besides the monitoring device 100 other peripherals, such as a telephone 203 , are connected. The data interfaces 201-1 . 201-2 . 201-3 include a number of Ethernet interfaces 201-1 or LAN ports, TAE interfaces 201-2 and a USB interface 201-3 to connect the peripherals.

The data interfaces 201-1 . 201-2 . 201-3 can the data interface 107 in 1 correspond or may be the data interface 107 the data interfaces 201-1 . 201-2 . 201-3 include.

To connect the communication device 103 with the communication network 101 can the data interface 201-1 to a telephone connection 205 be connected.

The telephone connection 205 can include a TAE junction box. Furthermore, the telephone connection 205 be designed for an IP-based communication, for example by means of voice over IP.

The monitoring device 100 and the communication device 103 in 2 are each to power to a power outlet 207-1 . 207-2 connected. The power outlets 207-1 . 207-2 can a common power Supplies 119 be assigned, for example, a 230 V network.

According to another embodiment, the monitoring device 100 a monitoring module for monitoring an IP-based communication connection, in particular an IP module or an IP connection module.

3 shows a schematic representation of a control center 111 to monitor the communication connection 101 between the communication device 103 and the communication network 105 according to an embodiment, wherein the monitoring device 100 to the communication device 103 connected.

The control center 111 includes a communication interface 301 , which is formed over the communication network 105 from the monitoring device 100 receiving a status signal, wherein the status signal is a communication status of the data interface 107 of the communication device 103 in the communication network 105 indicating, with the communication interface 301 is further configured, in response to receiving the status signal, an acknowledgment signal via the communication network 105 to the monitoring device 100 send out.

The control center 111 may comprise a control center device, in particular a computer, a server or a computer network. The control center 111 or the control center device may be designed to execute control center software. The control center 111 can be a communication center for monitoring and controlling the communication network 105 be.

The communication interface 301 the control center 111 may include a receiver for receiving the status signal.

The control center 111 may further include a processor 303 which is formed, a disturbance of the communication link 101 between the communication device 103 and the communication network in response to receiving the status signal, wherein the processor 303 may be formed when detected disturbance of the communication link 101 to issue a fault signal.

The processor 303 may be a microprocessor and may include a memory. Furthermore, the processor can 303 in a data processing device, such as a desktop computer or a laptop, the control center 111 be integrated. In the same way, the communication interface 301 in a data processing device of the control center 111 be integrated.

The control center 111 in 3 includes another communication interface 305 , The processor 303 can be formed at detected fault the other communication interface 305 to drive with the fault signal.

The further communication interface 305 may be formed, in response to the fault signal, a warning message to another communication device 307 send out.

The further communication device 307 may be a mobile communication device, in particular a smartphone or a laptop. The control center 111 can be configured, the warning message as an e-mail, fax, SMS or telephone notification to the other communication device 307 to send out, in particular automatically send out.

The communication interface 301 the control center 111 and the further communication interface 305 the control center 111 can be the same.

The control center 111 in 3 also includes a display 309 , The ad 309 can through the processor 303 when detected fault with the fault signal to indicate the failure of the communication link 101 be controllable. Thus, a user on the part of the control center can efficiently through a communication link failure 101 be informed. The ad 309 may include a display, in particular a touch display.

The ad 309 may be part of a computer or a mobile communication device, such as a smartphone. The ad 309 may include a display or a touch display.

4 shows schematic representations of the control center 111 , the communication device 103 and the monitoring device 100 according to one embodiment.

The control center 111 in 4 includes a control center device 401 such as a computer, and a display 403 , The control center device 401 can be designed to run a control center software. Furthermore, the control center device 401 the communication interface 301 , the processor 303 and the further communication interface 305 include.

The control center 111 can be used to monitor communication links between a plurality of communication devices and the communication network 105 be educated.

the display 403 and / or a switched control center software can be configured, the plurality of communication devices in the communication network 105 to list in list form. Communication devices for which the processor 303 detected a fault can be marked in the list by a colored highlighting.

According to one embodiment of the monitoring device 100 includes the communication device 103 the monitoring device 100 , In this case, the monitoring device 100 as monitoring software, which in the communication device 103 is installed, be trained.

According to one embodiment, a leased line connection may occur between the monitoring device 100 and the control center 111 for monitoring the communication connection 101 getting produced. For this purpose, the monitoring device 100 via a LAN cable to a free LAN port of the communication device 103 , for example, a router connected. Via the router, a wireless or wired connection with a reception center of the control center 111 , for example over the Internet. It can by means of the control center device 401 a connection establishment, a disconnection and a disturbance, an interruption or a restoration of the standing connection are detected. The control center software can be used, for example, to display the messages "Establishing the connection" and "Disconnecting" in the display 309 For example, the display 403 to be visualized.

According to one embodiment, from the side of the control center 111 a fault, in particular a failure, the power supply 119 of the communication device 103 be detected if the fault of the power supply 119 to a failure of the transmission of the status signal by the communication device 103 leads. The failure of the power supply 119 of the communication device 103 can lead to a connection termination of the communication connection 101 lead, which of the control center 111 can be detected.

From those in the control center 111 detected connection establishment, degradation or malfunction can be derived such measures as an automatic notification of a user via telephone call, fax, SMS or e-mail.

With the help of the monitoring device 100 and / or the control center 111 can be communication links 101 by users with an increased need for security, in particular emergency service providers, users of security technology who control the communication connection 101 or users who rely on high availability of their connections, such as government agencies, energy system operators, banks, hospitals, doctors or freight forwarders.

Furthermore, with the help of the monitoring device 100 and / or the control center 111 communications equipment 103 or communication networks 105 be monitored for which there is a particularly high risk of damage or theft.

LIST OF REFERENCE NUMBERS

100

 monitoring device

101

 communication link

103

 communication device

105

 Communication network

107

 Data Interface

109

 Communication Interface

111

 control center

113

 processor

115

 optical display

117

 Power supply monitoring device

119

 power supply

121

 Storage

201-1

 Data Interface

201-2

 Data Interface

201-3

 Data Interface

203

 phone

205

 telephone line

207-1

 power outlet

207-2

 power outlet

301

 Communication Interface

303

 processor

305

 further communication interface

307

 another communication device

309

 display

401

 control station device

403

 display

Claims (13)

Monitoring device ( 100 ) for monitoring a communication connection ( 101 ) between a communication device ( 103 ) and a communication network ( 105 ), wherein the communication device ( 103 ) a data interface ( 107 ) for communicating with the communication network ( 105 ), comprising: a communication interface ( 109 ), which communicate with the data interface ( 107 ) of the communication device ( 103 ), the communication interface ( 109 ), a communication status of the data interface ( 107 ), the communication interface ( 109 ) is further configured, a status signal, the communication status of the data interface ( 107 ), in continuous time intervals over the Communication network ( 105 ) to a control center ( 111 ) and the communication interface ( 109 ) is further configured, in response to the transmission of the status signal, an acknowledgment signal from the control center ( 111 ) via the communication network ( 105 ) to recieve; and a processor ( 113 ), which is formed, a disturbance of the communication link ( 101 ) in response to receiving the confirmation signal. Monitoring device ( 100 ) according to claim 1, wherein the processor ( 113 ), the fault of the communication link ( 101 ) upon failure to receive the acknowledgment signal. Monitoring device ( 100 ) according to any one of the preceding claims, wherein the processor ( 113 ) is formed, when detected disturbance of the communication link ( 101 ) output a fault signal. Monitoring device ( 100 ) according to claim 3, wherein the monitoring device ( 100 ) an optical display ( 115 ) provided by the processor ( 113 ) with detected fault with the fault signal for visually displaying the fault of the communication link ( 101 ) is controllable. Monitoring device ( 100 ) according to claim 4, wherein the visual display ( 115 ) comprises a lighting device, in particular a number of LEDs, wherein the lighting device is designed to emit a light signal in a light color, a luminous frequency or a light brightness in order to disturb the communication link ( 101 ). Monitoring device ( 100 ) according to claim 5, wherein the monitoring device ( 100 ) a power supply monitoring device ( 117 ) which is connected to a power supply ( 119 ) of the communication device ( 103 ) is connectable and configured, a status of the power supply ( 119 ), wherein the lighting device is designed in response to detecting a failure of the power supply ( 119 ) by the power supply monitoring device ( 117 ) send out another light signal to prevent the power supply from malfunctioning ( 119 ). Monitoring device ( 100 ) according to any one of the preceding claims, wherein the data section ( 107 ) operates according to one of the following communication technologies: DSL, VDSL, GSM, UMTS, LTE, IP-based communication such as Voice-over-IP, and the communication interface ( 109 ), the status of the communication connection ( 101 ) for at least one of these communication technologies. Monitoring device ( 100 ) according to one of the preceding claims, wherein the status signal comprises the following characteristics: device ID of the monitoring device ( 100 ), IP address of the control center ( 111 ), Port of the control center ( 111 ). Monitoring device ( 100 ) according to claim 8, wherein the monitoring device ( 100 ) a memory ( 121 ) for storing the status signal and the characteristics of the status signal. Control center ( 111 ) for monitoring a communication connection ( 101 ) between a communication device ( 103 ) and a communication network ( 105 ), wherein a monitoring device ( 100 ) to the communication device ( 103 ) is connectable, wherein the monitoring device ( 100 ) is formed, a status signal in continuous time intervals via the communication network ( 105 ) to the control center ( 111 ), comprising: a communication interface ( 301 ), which is formed via the communication network ( 101 ) of the monitoring device ( 100 ) receive the status signal, the status signal having a communication status of a data interface ( 107 ) of the communication device ( 103 ) in the communication network ( 105 ) indicates; where the communication interface ( 301 ) is further configured, in response to receiving the status signal, an acknowledgment signal via the communication network ( 105 ) to the monitoring device ( 100 ). Control center ( 111 ) according to claim 10, wherein the control center ( 111 ) a processor ( 303 ), which is formed, a disturbance of the communication link ( 101 ) between the communication device ( 103 ) and the communication network ( 105 ) in response to receiving the status signal, wherein the processor ( 303 ) is formed, when detected disturbance of the communication link ( 101 ) output a fault signal. Control center ( 111 ) according to claim 11, wherein the control center ( 111 ) another communication interface ( 305 ) provided by the processor ( 303 ) is detected at the detected disturbance with the disturbance signal, and which is formed, in response to the disturbance signal, a warning message to another communication device ( 307 ). Control center ( 111 ) according to claim 11 or 12, wherein the control center ( 111 ) an ad ( 309 ) provided by the processor ( 303 ) with detected fault with the fault signal to display the Disruption of the communication connection ( 101 ) is controllable.

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