Information about direct dialing numbers / extentions
The existing 6-digit direct dialing numbers will remain unchanged.
For the existing 4-digit direct dialing numbers, the digits 67 will be prefixed.
Switchboard: +43 1 2300023-0
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The existing 6-digit direct dialing numbers will remain unchanged.
For the existing 4-digit direct dialing numbers, the digits 67 will be prefixed.
Switchboard: +43 1 2300023-0