Merge "Telephony: Handling of supplimentary services in Call"

import android.os.Message;

import android.os.RegistrantList;

import android.os.Registrant;

import android.telephony.PhoneNumberUtils;

import android.telephony.PhoneStateListener;

import android.telephony.ServiceState;

import android.telephony.Rlog;

        }

        if (!canDial(phone)) {

            /*

             * canDial function only checks whether the phone can make a new call.

             * InCall MMI commmands are basically supplementary services

             * within a call eg: call hold, call deflection, explicit call transfer etc.

             */

            String newDialString = PhoneNumberUtils.stripSeparators(dialString);

            if (basePhone.handleInCallMmiCommands(newDialString)) {

                return null;

            } else {

                throw new CallStateException("cannot dial in current state");

            }

        }

        if ( hasActiveFgCall() ) {

            Phone activePhone = getActiveFgCall().getPhone();