Telecomm: Don't get default phones outside of phone process.

import android.provider.Settings;

import android.text.TextUtils;

import com.android.internal.telephony.PhoneFactory;

import cyanogenmod.providers.CMSettings;

import android.telephony.SubscriptionManager;

                // request the custom ringtone from the call and expect it to be current.

                String foregroundCallId = foregroundCall.getTargetPhoneAccount().getId();

                int phoneId = PhoneFactory.getDefaultPhone().getPhoneId();

                int phoneId = 0;

                // Also make sure that the id passed into the call object is a valid digit

                // before attempting to fetch the phone id from subscriptionmanager

                // (CYNGNOS-2261)