Is it haram to speak when the Quran is being recited?

According to the following verse, is it haram (forbidden) to speak when the holy Quran is reciting? Or it is Makruh? > (7:204) وَ إِذا قُرِئَ الْقُرْآنُ فَاسْتَمِعُوا لَهُ وَ أَنْصِتُوا > لَعَلَّکُمْ تُرْحَمُونَ > > So when the Qur'an is recited, then listen to it and pay attention > that you may receive mercy. (7:204)