Germany's largest mosque in Cologne broadcast the Muslim call to prayer over its loudspeakers for the first time on Friday.
"This a sign that Muslims are at home here," Abdurrahman Atasoy, the secretary general of the Turkish-Islamic Union for Religious Affairs (DITIB) told reporters, and thanked the city administration.
Cologne is one of Germany's biggest cities, and home to more than 120,000 Muslims, nearly 12% of the city's entire population.
As part of a pilot project, the city administration allowed the Cologne Central Mosque to broadcast the call to Friday Prayers over loudspeakers, but on condition that the volume will not exceed 60 decibels.
Abdurrahman Atasoy, deputy chairman of Ditib Federal, said they were "very happy" about the agreement concluded with the city of Cologne.
"The public call to prayer is a sign that Muslims are at home, he said. "The core message of this long process is that Muslims are ... a visible part and with their call to prayer an audible part (of society)."
Cologne's mayor, Henriette Reker, paved the way for the muezzin's call, arguing that the act cannot be denied to Muslims because of the freedom of religious practice guaranteed under Germany's Basic Law.
Reker has been a strong supporter of the idea, but she has been heavily criticized by far-right parties. "Cologne is a city of religious diversity and freedoms. Allowing muezzin's call to prayer for me is a sign of respect," she said earlier.
Germany's constitution guarantees freedom of religion, but broadcasting calls to prayers from mosques have been contentious in some municipalities, due to different legislative frameworks.
Far-right politicians have long rejected proposals allowing mosques to broadcast the Muslim call to prayer over loudspeakers, claiming that this would be another sign of the "Islamization of Germany."