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-{
-	"title": "ModemManager essentials",
-	"subtitle": "Handling modems from the Linux command line"
-}
-
-#### Introduction
-
-The software [ModemManager][4] handles modems on Linux operating systems. It
-has the `mmcli` command line utility included which exposes its functionality.
-
-It is possible to use `mmcli` to setup mobile internet connections, make phone
-calls and send SMS.
-
-This article summarizes some basic `mmcli` commands. It was written to further
-debug the issue described in [this postmarketOS issue][5].
-
-#### Get modem summary
-
-With this command a summary about the modem is printed. It assumes just one
-connected modem (`-m any`) which should be given on nearly all devices:
-
-```
-mmcli -m any
-```
-
-#### Unlock a SIM card
-
-To actually do something with the modem it might be necessary to unlock the
-inserted SIM card:
-
-```
-# this command needs appropriate polkit authentication or root permissions
-mmcli -i "/org/freedesktop/ModemManager1/SIM/0" --pin "1234"
-```
-
-Use the SIM path listed in the summary (see section above).
-
-#### Enable modem
-
-In addition to unlocking the SIM card it is required to enable the modem:
-
-```
-# this command needs appropriate polkit authentication or root permissions
-mmcli -m any -e
-```
-
-#### List calls
-
-This command lists active, ringing, terminated and other calls:
-
-```
-mmcli -m any --voice-list-calls
-```
-
-The idea is that calls are tracked with the identifiers printed by this command
-which allows to send additional commands like accept or hangup.
-
-#### Accept a call
-
-An incoming call can be accepted like this:
-
-```
-# this command needs appropriate polkit authentication or root permissions
-mmcli -m any -o "/org/freedesktop/ModemManager1/Call/0" --accept
-```
-
-#### Hangup a call
-
-Any active call can be hung up like this:
-
-```
-# this command needs appropriate polkit authentication or root permissions
-mmcli -m any -o "/org/freedesktop/ModemManager1/Call/0" --hangup
-```
-
-#### Create a call
-
-To create a call one can use the following command. Take care to select the
-right phone number format. Given is an example phone number with German
-international prefix `+49`.
-
-```
-mmcli -m any --voice-create-call "number=+49123456789"
-```
-
-This command just registeres a new call. To actually start it one has to get
-its identifier with listing all calls and then start it like this:
-
-```
-# this command needs appropriate polkit authentication or root permissions
-mmcli -m any -o "/org/freedesktop/ModemManager1/Call/4" --start
-```
-
-It can be hung up like incoming calls.
-
-#### Further documentation
-
-Running `mmcli --help` and the there listed help commands provide a summary of
-all the functionality ModemManager provides. This article is just a brief
-subset of it.
-
-The [SXMO modem scripts][1] from the [SXMO project][2] helped me a lot to write
-this summary aswell as the [Chromium mmcli help page][3].
-
-Of course the [ModemManager homepage][4] is the most official entry point to
-search for further documentation.
-
-[1]: https://git.sr.ht/~mil/sxmo-utils/tree/master/item/scripts/modem
-[2]: https://sxmo.org/
-[3]: https://www.chromium.org/chromium-os/how-tos-and-troubleshooting/debugging-3g/modem-debugging-with-mmcli/
-[4]: https://www.freedesktop.org/wiki/Software/ModemManager/
-[5]: https://gitlab.com/postmarketOS/pmaports/-/issues/2113