Klagenfurt Styria formed the British occupation zone in liberated Austria, a state of affairs which lasted until 26 October 1955. In 1961, Klagenfurt became the first city in Austria to adopt a pedestrian zone. The idea of a friendly twinning of cities in other countries that had started with the very first ever city partnership - Klagenfurt and Wiesbaden, Germany, as early as 1930 - was followed up by numerous city partnerships with the result that in 1968 Klagenfurt was honoured with the title of a "European City of the Year". Three times, a European record, Klagenfurt was also awarded 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