The article contains this statement "According to the London
Daily Telegraph, the attempt to ban the prayer might be easier said than done as Danish legal hurdles exist casting freedom of religion is a legal guarantee."
I don't think banning the call to prayer is infringing on Muslims religious freedom. They are still free to practice their religion. I would have thought the call to prayer actually infringes on other people's religious freedom, as non-Muslims in the area of the call to prayer are having Islamic practices forced on them.