Klagenfurt Cathedral to be rebuilt in 1724. Bishop Franz Xaver von Salm-Reifferscheidt made it the cathedral of the Diocese of Gurk in 1787. Klagenfurt Cathedral The Cathedral and parish church of Saints Peter and Paul, also known as Klagenfurt Cathedral, is the cathedral of the Roman Catholic Diocese of Gurk-Klagenfurt and the main parish church of Klagenfurt. It was built by Protestants and dedicated to the Holy Trinity in 1581, and was the largest Protestant church in Austria at that time. The cathedral was commissioned by Christoph Windisch, Klagenfurt' s first mayor. In 1600, during the Counter-Reformation, it was given to the
Signaling System No. 6 system where the link between country A and country B could perform the signalling functions for links to country A from country D for example. CCITT No 6 was a method developed & implemented by administrations in a limited number of countries for use in correspondent International Switching of analogue telephone calls. The next development was correspondent and non-correspondent switching of telephone calls by new operators in the countries where more sophisticated methods were required. Signaling System No. 6 SS6 or CCITT No 6 Signalling System was introduced in the 1970s as an early common channel signalling method for telephone