diff --git a/CHANGELOG.md b/CHANGELOG.md
index cfa73e0..07e51d9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,4 @@
 # Changelog
 
-## [x.x.x] - unreleased
+## [0.1.0]
+- The first version is linked to the original [ModemManager](https://gitlab.freedesktop.org/mobile-broadband/ModemManager)
diff --git a/README.md b/README.md
index 0d87ba8..97b148b 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,7 @@ After installing the dependencies, you just need to run the script `build.sh `an
 ```
 gcc -Werror -Wall -Os src/*.c `pkg-config --libs --cflags mm-glib` -o mportlink
 ```
+
+## To-Do
+
+Currently, the utility is linked to the ModemManager server, through which the connected modems are identified. It is planned to disconnect from this server, as there is a problem with the capture of the device and the unavailability of using Asterisk.
diff --git a/services/mportlink.service b/services/mportlink.service
index 3f864ab..88cfd8e 100644
--- a/services/mportlink.service
+++ b/services/mportlink.service
@@ -1,7 +1,6 @@
 [Unit]
 Description=Modem Port Link
-After=polkit.service
-Requires=polkit.service
+After=ModemManager.service
 
 [Service]
 ExecStart=/usr/bin/mportlink