Current dial-in numbers
(040) 414 314 102 Germany (Hamburg)
+41 (43) 500 6570 Switzerland (Zurich)
+43 (1) 253 497 8225 Austria (Vienna)
+31 (20) 80 80 880 Netherlands (Amsterdam)
0044 20 300 25 996 United Kingdom (London)
All phone numbers are landline numbers within the respective country; without additional fees.
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