Call MonitoringΒΆ

The fritzmonitor-module is a core module of fritzconnection to provide real-time informations about incoming and outgoing phone-calls. This functionality is based on a separate socket-connection to the router and does not communicate by TR-064.

FritzMonitor provides a queue of type queue.Queue for accessing CallMonitor events. To check the events send from the router, fritzconnection comes with a fritzmonitor command line tool. The next block shows a typical session:

$ fritzmonitor -i

fritzconnection v1.4.0
start fritzmonitor on address:
settings for socket-timeout: 10 [sec]
settings for healthcheck-timeout: 10 [sec]
(to stop press ^C)

28.11.20 15:17:43;RING;2;<calling number>;<called number>;SIP0;
28.11.20 15:17:47;CONNECT;2;4;<calling number>;
28.11.20 15:17:50;DISCONNECT;2;4;

The events are of type string in a format defined by AVM. The option -i specifies the ip address of the router. The option -h provides a help menu.

Here is a basic example how to use FritzMonitor in a module to pull events:

import queue
from fritzconnection.core.fritzmonitor import FritzMonitor

def process_events(monitor, event_queue, healthcheck_interval=10):
    while True:
            event = event_queue.get(timeout=healthcheck_interval)
        except queue.Empty:
            # check health:
            if not monitor.is_alive:
                raise OSError("Error: fritzmonitor connection failed")
            # do event processing here:

def main():
    """Entry point: example to use FritzMonitor.
        # as a context manager FritzMonitor will shut down the monitor thread
        with FritzMonitor(address='') as monitor:
            event_queue = monitor.start()
            process_events(monitor, event_queue)
    except (OSError, KeyboardInterrupt) as err:

if __name__ == "__main__":

The FritzMonitor API is also documented in Structure and API.


To do call monitoring, the CallMonitor service of the Fritz!Box has to be activated. This can be done with any registered phone by typing the following codes:

activate: #96*5*
deactivate: #96*4*