I have developed many graphics and multimedia related apps .I have done many applications that can play a music file , sound etc . I have also developed a wide range of BlackBerry applications that deal with telephony , messaging , networking as well as many web enabled applications or GPS applications.I have developed many custom applications , multimedia enabled applications as well as graphic rich games . I have also expertise in developing applications that needed adavanced knowledge of Telephony , SMS , messaging , networking etc I have developed many applications that run in the background and can automatically deal with call , SMS etc .