public void unregisterForSuppServiceNotification(Handler h) {
mSsnRegistrants.remove(h);
if (mSsnRegistrants.size() == 0) mCM.setSuppServiceNotifications(false, null);
}
public void registerForSuppServiceNotification(Handler h, int what, Object obj) {
mSsnRegistrants.addUnique(h, what, obj);
if (mSsnRegistrants.size() == 1) mCM.setSuppServiceNotifications(true, null);
}