Working for mobile network operators in a situation when they are placing the technological innovation to the market is very delicate. You need to be careful in order to transfer the message correctly and to explain the product. But, the results does not need to be boring. Proof for that is the campaign that we realised for Telekom Srbija as part of the introduction of video call service also for the pre-paid users. The ”Now you see me, and now you do not” campaign is an example of how, if you only find the right angle, your message stays in the client’s consciousness.