The interface is similar to that of a mobile phone. He started out producing by making mobile phone ringtones. Ram discovers a cache of diamonds inside Maggie's mobile phone. Japan was a leader in mobile phone technology. Telia Company owned 60% of mobile phone operator Tcell. This is the case for both land lines and mobile phone numbers. They can be best described as applications installed on a mobile phone. China is the largest market in terms of mobile phone subscribers. The coaches are fitted with power sockets for laptop computers and mobile phone charging. It is a vendor of feature phones, smartphones, tablets and mobile phone accessories. Other systems consist of software that runs on the user's mobile phone. A prepaid mobile phone provides most of the services offered by a mobile phone operator. The phone is offered for use with a wide range of mobile phone networks. Teenagers see themselves as gaining a sense of empowerment from the mobile phone. He is developing video and mobile phone content.