[Unit]
Description=Modem Manager
After=polkit.service
Requires=polkit.service
ConditionVirtualization=!container

[Service]
Type=dbus
BusName=org.freedesktop.ModemManager1
ExecStart=/usr/sbin/ModemManager
StandardError=null
Restart=on-abort
CapabilityBoundingSet=CAP_SYS_ADMIN CAP_NET_ADMIN
ProtectSystem=true
ProtectHome=true
PrivateTmp=true
RestrictAddressFamilies=AF_NETLINK AF_UNIX AF_QIPCRTR
NoNewPrivileges=true
User=root

[Install]
WantedBy=multi-user.target
Alias=dbus-org.freedesktop.ModemManager1.service