Merge "Fix potential call crashes in Telephony."

        boolean holdBeforeDial = prepareForDialing(dialArgs);

        mClirMode = clirMode;

        ImsPhoneConnection pendingConnection;

        synchronized (mSyncHold) {

            mLastDialArgs = dialArgs;

            mPendingMO = new ImsPhoneConnection(mPhone,

            pendingConnection = new ImsPhoneConnection(mPhone,

                    participantsToDial, this, mForegroundCall,

                    false);

            mPendingMO.setVideoState(videoState);

            // Don't rely on the mPendingMO in this method; if the modem calls back through

            // onCallProgressing, we'll end up nulling out mPendingMO, which means that

            // TelephonyConnectionService would treat this call as an MMI code, which it is not,

            // which would mean that the MMI code dialog would crash.

            mPendingMO = pendingConnection;

            pendingConnection.setVideoState(videoState);

            if (dialArgs.rttTextStream != null) {

                log("startConference: setting RTT stream on mPendingMO");

                mPendingMO.setCurrentRttTextStream(dialArgs.rttTextStream);

                pendingConnection.setCurrentRttTextStream(dialArgs.rttTextStream);

            }

        }

        addConnection(mPendingMO);

        addConnection(pendingConnection);

        if (!holdBeforeDial) {

            dialInternal(mPendingMO, clirMode, videoState, dialArgs.intentExtras);

            dialInternal(pendingConnection, clirMode, videoState, dialArgs.intentExtras);

        }

        updatePhoneState();

        mPhone.notifyPreciseCallStateChanged();

        return mPendingMO;

        return pendingConnection;

    }

    @UnsupportedAppUsage