diff --git a/doc/calls-docs.xml b/doc/calls-docs.xml
index c5958e9..17a8658 100644
--- a/doc/calls-docs.xml
+++ b/doc/calls-docs.xml
@@ -35,4 +35,10 @@
     <xi:include href="xml/calls-call.xml"/>
   </chapter>
 
+  <chapter id="dbus">
+    <title>DBus interfaces</title>
+    <xi:include href="../src/dbus/calls-sm.puri.Calls.xml"/>
+    <xi:include href="../src/dbus/calls-sm.puri.Calls.Call.xml"/>
+  </chapter>
+
 </book>
diff --git a/doc/meson.build b/doc/meson.build
index 14c5885..afedc66 100644
--- a/doc/meson.build
+++ b/doc/meson.build
@@ -27,6 +27,7 @@ gnome.gtkdoc('calls',
             src_dir: [
                        join_paths(meson.source_root(), 'src'),
                        join_paths(meson.build_root(), 'src'),
+                       join_paths(meson.build_root(), 'src/dbus'),
                        join_paths(meson.build_root(), 'plugins/ofono/libgdbofono'),
                      ],
        dependencies: calls_doc_deps,
diff --git a/src/dbus/meson.build b/src/dbus/meson.build
new file mode 100644
index 0000000..20084a1
--- /dev/null
+++ b/src/dbus/meson.build
@@ -0,0 +1,14 @@
+generated_dbus_sources = []
+
+# DBus server protocols
+generated_dbus_sources += gnome.gdbus_codegen('calls-dbus',
+                'sm.puri.Calls.xml',
+                docbook: 'calls',
+                interface_prefix: 'sm.puri',
+                namespace: 'CallsDBus')
+
+generated_dbus_sources += gnome.gdbus_codegen('calls-call-dbus',
+                'sm.puri.Calls.Call.xml',
+                docbook: 'calls',
+                interface_prefix: 'sm.puri',
+                namespace: 'CallsCallDBus')
diff --git a/src/dbus/sm.puri.Calls.Call.xml b/src/dbus/sm.puri.Calls.Call.xml
new file mode 100644
index 0000000..dad19b2
--- /dev/null
+++ b/src/dbus/sm.puri.Calls.Call.xml
@@ -0,0 +1,36 @@
+<!DOCTYPE node PUBLIC
+        "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
+        "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
+
+<!--
+        Copyright (C) 2021 Purism SPC
+
+        This library is free software; you can redistribute it and/or
+        modify it under the terms of the GNU Lesser General Public
+        License as published by the Free Software Foundation; either
+        version 3 of the License, or (at your option) any later version.
+
+        This library is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+        Lesser General Public License for more details.
+
+        You should have received a copy of the GNU Lesser General
+        Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+-->
+
+<node>
+  <interface name="sm.puri.Calls.Call">
+    <method name="AcceptCall"/>
+    <method name="EndCall"/>
+    <method name="HoldCall"/>
+    <method name="UnholdCall"/>
+    <method name="SendDtmf">
+      <arg direction="in" type="s" name="tones"/>
+    </method>
+    <property name="CallParty" type="as" access="read"/>
+    <property name="CallIsConference" type="b" access="read"/>
+    <property name="CallState" type="u" access="read"/>
+    <property name="Origin" type="s" access="read"/>
+  </interface>
+</node>
diff --git a/src/dbus/sm.puri.Calls.xml b/src/dbus/sm.puri.Calls.xml
new file mode 100644
index 0000000..3114502
--- /dev/null
+++ b/src/dbus/sm.puri.Calls.xml
@@ -0,0 +1,53 @@
+<!DOCTYPE node PUBLIC
+        "-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
+        "http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
+
+<!--
+        Copyright (C) 2021 Purism SPC
+
+        This library is free software; you can redistribute it and/or
+        modify it under the terms of the GNU Lesser General Public
+        License as published by the Free Software Foundation; either
+        version 3 of the License, or (at your option) any later version.
+
+        This library is distributed in the hope that it will be useful,
+        but WITHOUT ANY WARRANTY; without even the implied warranty of
+        MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+        Lesser General Public License for more details.
+
+        You should have received a copy of the GNU Lesser General
+        Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
+-->
+
+<node>
+  <interface name="sm.puri.Calls">
+    <method name="Dial">
+      <arg type="s" direction="in" name="number"/>
+      <arg type="b" direction="out" name="success"/>
+    </method>
+    <method name="GetCalls">
+      <arg type="ao" direction="out" name="calls">
+      <doc:doc>
+        <doc:summary>an array of ongoing calls</doc:summary>
+      </doc:doc>
+    </arg>
+    <doc:doc>
+      <doc:description>
+        <doc:para>This gets a list of all <doc:ref type="interface" to="sm.puri.Calls.Call">Calls</doc:ref>
+        that are currently ongoing.</doc:para>
+        <doc:para>Each Call is an D-Bus object path for the object that implements the
+        <doc:ref type="interface" to="sm.puri.Calls.Call">Call</doc:ref> interface.</doc:para>
+      </doc:description>
+    </doc:doc>
+  </method>
+    <property name="HasOngoingCall" type="b" access="read"/>
+    <signal name="CallAdded">
+      <arg name="id" type="u"/>
+      <arg name="parameters" type="a{sv}"/>
+    </signal>
+    <signal name="CallRemoved">
+      <arg name="id" type="u"/>
+      <arg name="parameters" type="a{sv}"/>
+    </signal>
+  </interface>
+</node>
diff --git a/src/meson.build b/src/meson.build
index 3a64511..7f64721 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -21,10 +21,12 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 #
 
-subdir('wayland')
 
 gnome = import('gnome')
 
+subdir('wayland')
+subdir('dbus')
+
 src_include = include_directories('.')
 calls_includes = [ top_include, src_include ]
 
@@ -82,6 +84,7 @@ calls_resources = gnome.compile_resources(
 calls_generated_sources = [
   calls_enum_sources,
   calls_resources,
+  generated_dbus_sources,
   wl_proto_sources,
 ]