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<div class="toc"><dl class="toc">
<dt><span class="section"><a href="ch12.html#id-1.5.3.1">Listing available modems</a></span></dt>
<dt><span class="section"><a href="ch12s02.html">PIN unlocking</a></span></dt>
<dt><span class="section"><a href="ch12s03.html">Connection and disconnection</a></span></dt>
<dt><span class="section"><a href="ch12s04.html">Simple connection</a></span></dt>
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<div class="titlepage"><div><div><h2 class="title" style="clear: both">
<a name="id-1.5.3.1"></a>Listing available modems</h2></div></div></div>
<p>
The D-Bus name <code class="literal">org.freedesktop.ModemManager1</code>
on the system bus is the new name used by the ModemManager 1.0 daemon, and it
implements several standard DBus interfaces, including the new
<a class="ulink" href="http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager" target="_top">
<code class="literal">org.freedesktop.DBus.ObjectManager</code>
</a>
interface, which allows to list available modem objects and get notifications
where new ones are added or when existing ones are removed. There are therefore
neither a custom method to enumerate devices as in the old 0.6 interface, nor
custom signals to notify about added or removed modems.
</p>
<p>
Modems which are found but are not usable will be flagged with a
<a class="link" href="ModemManager-Flags-and-Enumerations.html#MM-MODEM-STATE-FAILED:CAPS"><code class="constant">MM_MODEM_STATE_FAILED</code></a>
state in the
<a class="link" href="gdbus-org.freedesktop.ModemManager1.Modem.html#gdbus-property-org-freedesktop-ModemManager1-Modem.State" title='The "State" property'>
<code class="literal">State</code>
</a>
property, and a more detailed reason about the failure will be given in the
<a class="link" href="gdbus-org.freedesktop.ModemManager1.Modem.html#gdbus-property-org-freedesktop-ModemManager1-Modem.StateFailedReason" title='The "StateFailedReason" property'>
<code class="literal">StateFailedReason</code>
</a>
property. The most common case of failure is to have the SIM missing in a modem which
requires one for operation.
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