diff --git a/gui/ChatPane.qml b/gui/ChatPane.qml
index 27c0d2f..de6ed94 100644
--- a/gui/ChatPane.qml
+++ b/gui/ChatPane.qml
@@ -795,6 +795,8 @@ Item {
         Item {
             implicitHeight: callLayout.implicitHeight + 12
 
+            property bool expanded: false
+
             HoverHandler { id: callHover }
 
             Rectangle {
@@ -831,13 +833,18 @@ Item {
                 spacing: 4
 
                 Label {
-                    text: "\u26A1 call: " + (block ? (block.blockName || "") : "")
+                    text: (expanded ? "\u25BC" : "\u25B6") + " \u26A1 call: " + (block ? (block.blockName || "") : "")
                     font.pixelSize: Qt.application.font.pixelSize * 0.8
                     color: "#ff9800"
+                    MouseArea {
+                        anchors.fill: parent
+                        cursorShape: Qt.PointingHandCursor
+                        onClicked: expanded = !expanded
+                    }
                 }
 
                 Repeater {
-                    model: block ? block.subBlocks : []
+                    model: expanded && block ? block.subBlocks : []
                     delegate: Loader {
                         Layout.fillWidth: true
                         property var subBlock: modelData
diff --git a/gui/main-kf5.qml b/gui/main-kf5.qml
index dd53882..27293df 100644
--- a/gui/main-kf5.qml
+++ b/gui/main-kf5.qml
@@ -1644,6 +1644,8 @@ ApplicationWindow {
         Item {
             implicitHeight: callLayout.implicitHeight + 12
 
+            property bool expanded: false
+
             HoverHandler { id: callHover }
 
             Rectangle {
@@ -1680,13 +1682,18 @@ ApplicationWindow {
                 spacing: 4
 
                 Label {
-                    text: "\u26A1 call: " + (block ? (block.blockName || "") : "")
+                    text: (expanded ? "\u25BC" : "\u25B6") + " \u26A1 call: " + (block ? (block.blockName || "") : "")
                     font.pixelSize: Qt.application.font.pixelSize * 0.8
                     color: "#ff9800"
+                    MouseArea {
+                        anchors.fill: parent
+                        cursorShape: Qt.PointingHandCursor
+                        onClicked: expanded = !expanded
+                    }
                 }
 
                 Repeater {
-                    model: block ? block.subBlocks : []
+                    model: expanded && block ? block.subBlocks : []
                     delegate: Loader {
                         Layout.fillWidth: true
                         property var subBlock: modelData