sip: fix sip call hold status behavior

Gitlab: #248
Change-Id: I5339156013787850e19a71a440c0e1b046ee76ed

images/icons/ic_pause_white_100px.svg

+<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" version="1.1" style="" xml:space="preserve" width="477.867" height="477.867"><rect id="backgroundrect" width="100%" height="100%" x="0" y="0" fill="none" stroke="none"/>
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+<g class="currentLayer" style=""><title>Layer 1</title><g id="svg_1" class="selected" fill="#ffffff" fill-opacity="1">
+	<g id="svg_2" fill="#ffffff" fill-opacity="1">
+		<path d="M187.733,0H51.2c-9.426,0-17.067,7.641-17.067,17.067V460.8c0,9.426,7.641,17.067,17.067,17.067h136.533    c9.426,0,17.067-7.641,17.067-17.067V17.067C204.8,7.641,197.159,0,187.733,0z" id="svg_3" fill="#ffffff" fill-opacity="1"/>
+	</g>
+</g><g id="svg_4" class="" fill="#ffffff" fill-opacity="1">
+	<g id="svg_5" fill="#ffffff" fill-opacity="1">
+		<path d="M426.667,0H290.133c-9.426,0-17.067,7.641-17.067,17.067V460.8c0,9.426,7.641,17.067,17.067,17.067h136.533    c9.426,0,17.067-7.641,17.067-17.067V17.067C443.733,7.641,436.092,0,426.667,0z" id="svg_6" fill="#ffffff" fill-opacity="1"/>
+	</g>
+</g><g id="svg_7">
+</g><g id="svg_8">
+</g><g id="svg_9">
+</g><g id="svg_10">
+</g><g id="svg_11">
+</g><g id="svg_12">
+</g><g id="svg_13">
+</g><g id="svg_14">
+</g><g id="svg_15">
+</g><g id="svg_16">
+</g><g id="svg_17">
+</g><g id="svg_18">
+</g><g id="svg_19">
+</g><g id="svg_20">
+</g><g id="svg_21">
+</g></g></svg>
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resources.qrc

@@ -50,7 +50,7 @@
         <file>images/icons/ic_mic_off_white_24dp.png</file>
         <file>images/icons/pause_circle_outline-24px.svg</file>
         <file>images/icons/play_circle_outline-24px.svg</file>
-        <file>images/icons/ic_pause_white_100px.png</file>
+        <file>images/icons/ic_pause_white_100px.svg</file>
         <file>images/icons/ic_phone_24px.svg</file>
         <file>images/icons/groups-24px.svg</file>
         <file>images/icons/ic_photo_camera_white_24dp_2x.png</file>

src/constant/JamiStrings.qml

@@ -178,6 +178,8 @@ Item {
     property string mute: qsTr("Mute")
     property string unmute: qsTr("Unmute")
     property string hangup: qsTr("End call")
+    property string pauseCall: qsTr("Pause call")
+    property string resumeCall: qsTr("Resume call")
     property string pauseVideo: qsTr("Pause video")
     property string resumeVideo: qsTr("Resume video")
     property string addParticipants: qsTr("Add participants")

src/mainview/components/CallOverlay.qml

@@ -379,7 +379,7 @@ Rectangle {
 
         visible: false
 
-        source: "qrc:/images/icons/phone_paused-24px.svg"
+        source: "qrc:/images/icons/ic_pause_white_100px.svg"
     }
 
     CallOverlayButtonGroup {

src/mainview/components/CallViewContextMenu.qml

@@ -45,7 +45,8 @@ Item {
     function openMenu(){
         ContextMenuGenerator.initMenu()
         if (isSIP){
-            ContextMenuGenerator.addMenuItem(isPaused ? JamiStrings.resume : JamiStrings.hold,
+            ContextMenuGenerator.addMenuItem(isPaused ? JamiStrings.resumeCall :
+                                                        JamiStrings.pauseCall,
                                              isPaused ?
                                                  "qrc:/images/icons/play_circle_outline-24px.svg" :
                                                  "qrc:/images/icons/pause_circle_outline-24px.svg",