how to conference calls ? [duplicate]

There are already plenty of threads regarding this same question. Your question is really a duplicate.

I suggest you close your question and move it over to this thread; https://together.jolla.com/question/19661/feature-request-conference-call/ - I'm sure you will get the help you require there.

agreed, there exists another thread, I would like to know how to apply the patch. What I want to understand is what do with this text:

diff --git a/qml/pages/calling/InCallView.qml b/qml/pages/calling/InCallView.qml index c4aa611..3fa3c41 100644 --- a/qml/pages/calling/InCallView.qml +++ b/qml/pages/calling/InCallView.qml @@ -1,6 +1,7 @@ import QtQuick 2.0 import Sailfish.Silica 1.0 import Sailfish.Bluetooth 1.0 +import MeeGo.QOfono 0.2 import "../../common/CallLog.js" as CallLog

SilicaFlickable { @@ -34,6 +35,14 @@ SilicaFlickable { opacity: enabled ? 1.0 : 0.0 contentHeight: height

• property string modemPath: ofonoManager.modems.length > 0 ? ofonoManager.modems[0] : "" +
• OfonoManager { id: ofonoManager }
• OfonoVoiceCallManager {
• id: voiceCallManager
• modemPath: root.modemPath
• } + function reset() { telephony.audioMode = "earpiece" // passing true to hide() makes hiding immediate @@ -105,6 +114,11 @@ SilicaFlickable { text: qsTrId("voicecall-me-add_call") onClicked: main.addCallMode = true }
• MenuItem {
• visible: telephony.voiceCalls.count > 1
• text: "Merge Calls"
• onClicked: voiceCallManager.createMultiparty()

• } Repeater { model: telephony.voiceCalls delegate: MenuItem { @@ -420,28 +434,42 @@ SilicaFlickable { } }

• Button {

• id: endCallButton
• parent: inCallKeypad.open && !inCallKeypad.moving ? inCallKeypad : root.contentItem
• text: {
• if (main.state === 'dialing' || main.state == 'alerting')
• qsTrId("voicecall-bt-cancel")
• else if (main.state == 'null' || main.state == 'disconnected') // Call has ended so preserve previous text to avoid flicker.
• text
• else
• qsTrId("voicecall-bt-end_call")
• }
• width: Screen.width/2
• height: Theme.itemSizeLarge
• anchors {
• bottom: parent.bottom
• horizontalCenter: parent.horizontalCenter
• }
• onClicked: telephony.hangupCall(telephony.primaryCall)
• enabled: main.state !== 'null' && main.state !== "silenced" && main.state !== "disconnected"
• opacity: enabled ? 1.0 : 0.0
• Behavior on opacity { FadeAnimation { } }
• }
• Column {
• id: endCallButton
• parent: inCallKeypad.open && !inCallKeypad.moving ? inCallKeypad : root.contentItem
• width: Screen.width/2
• spacing: Theme.paddingSmall
• anchors {
• bottom: parent.bottom
• horizontalCenter: parent.horizontalCenter
• }
• Repeater {
• model: telephony.voiceCalls
• delegate: Button {
• text: {
• if (instance == telephony.primaryCall
• && (main.state === 'dialing' || main.state == 'alerting'))
• qsTrId("voicecall-bt-cancel")
• else if (main.state == 'null' || main.state == 'disconnected')
• // Call has ended so preserve previous text to avoid flicker.
• text
• else
• qsTrId("voicecall-bt-end_call") + ": " + CallLog.callerNameShort(telephony.callerDetails[instance.handlerId].person, instance.lineId)
• //telephony.primaryCall.lineId
• }
• width: Screen.width/2
• height: Theme.itemSizeLarge
• anchors {
• //bottom: parent.bottom
• horizontalCenter: parent.horizontalCenter
• }
• onClicked: telephony.hangupCall(instance)
• enabled: main.state !== 'null' && main.state !== "silenced" && main.state !== "disconnected"
• opacity: enabled ? 1.0 : 0.0
• Behavior on opacity { FadeAnimation { } }
• }
• }

• }

  InCallKeypad { id: inCallKeypad

Yes, I understand what you're asking (sadly, I don't know the answer), but the people on the thread I suggested, who show the code you speak of, clearly DO know how to apply it - that's my point, go ask your question in the EXISTING thread, no need to be clogging up the forum with duplicates.