(Telecompaper) T-Mobile Netherlands has introduced the concept of 'Device Flexibility'. With a Stel Samen & Stel Bij Sim Only subscription, customers can elect not to get a new handset right away when they renew their subscription. According to a study conducted by the mobile operator, nearly 40 percent of customers would prefer to make longer use of their existing subscription, still satisfied with their existing phone. Up to now, these customers could only take a Sim-only contract for at least one year. Now, they can take up the new Stel Samen & Stel Bij Sim Only subscription and choose when they want a new device with subscription. The mobile operator has said earlier it wants to increase flexibility and freedom of choice for customers.