Telebus - is a taxi service which provides service between anywhere in Geneva to Geneva-Cornavin or Geneva-Cointrin, apart from the hours of TPG services.
The reservation number is 0800 858 800. It needs to be booked by 23h30 on the day before for morning departures. It is essential to specify that you want to reserve a Telebus and not a taxi.
Click here for the website.