On 3 October 2016, UPC Switzerland (formerly upc cablecom) acquired the remaining 51% in e-fon AG. In October 2013, UPC already aquired 49% and entered into a joint venture with the sellers. e-fon is the leading provider in Switzerland for modern telephone solutions in the wholesale market.

Walder Wyss advised the sellers and e-fon AG in this transaction. The team was led by Alex Nikitine (Partner, Corporate/M&A, Capital Markets) and further included Hans Rudolf Trüeb (Partner, IP/IT) and Fabian D. Glässer (Associate, Corporate/M&A).