diff --git a/source/_components/sensor.fritzbox_callmonitor.markdown b/source/_components/sensor.fritzbox_callmonitor.markdown
index 50ad6f2d2ed..d5b07182dc6 100644
--- a/source/_components/sensor.fritzbox_callmonitor.markdown
+++ b/source/_components/sensor.fritzbox_callmonitor.markdown
@@ -16,6 +16,7 @@ ha_iot_class: "Local Polling"
 
 The `fritzbox_callmonitor` sensor monitors the call monitor exposed by [AVM Fritz!Box](http://avm.de/produkte/fritzbox/) routers
 on TCP port 1012. It will assume the values `idle`, `ringing`, `dialing`, or `talking` with the phone numbers involved contained in the state attributes.
+It can also access the internal phone book of the router to look up the names corresponding to the phone numbers and store them in the state attributes.
 
 To activate the call monitor on your Fritz!Box, dial #96\*5\* from any phone connected to it.
 
@@ -31,3 +32,27 @@ Configuration variables:
 
 - **host** (*Optional*): The IP address of your router, eg. 192.168.1.1. It is optional since every fritzbox is also reachable by using the IP address 169.254.1.1.
 - **port** (*Optional*): The TCP port of the call monitor. There is usually no reason to change this.
+- **username** (*Optional*): Fritz!Box user's user name. This is required to use the phone book lookup feature. The user needs to have the "voice message, fax message, Fritz!App Fon and call list" permission.
+- **password** (*Optional*): Fritz!Box user's user password. This is required to use the phone book lookup feature.
+- **phonebook** (*Optional*): Numerical ID identifying the phonebook to be used. If there is just one phonebook, this is usually 0.
+- **prefixes** (*Optional*): In case of a local call, the phone number seen by the router might differ from the one stored in the phone book by an area code, similarly for the international prefix. To remedy this, a list of prefixes, that can be appended to the phone number in case it is not found in the phone book, can be given.
+
+## {% linkable_title Examples %}
+
+### {% linkable_title Full configuration %}
+
+The example below shows a full configuration for a call monitor with phone book support.
+
+```yaml
+# Example configuration.yml entry
+sensor:
+  - platform: fritzbox_callmonitor
+    name: Phone
+    username: my_username
+    password: my_password
+    phonebook: 0
+    prefixes:
+      - '+49'
+      - '+4989'
+      - '089'
+```