42 [ Maintenance of computer software and technical support services, namely, troubleshooting of software problems with respect to computer software used encoding, decoding and storing of audio, voice, data, images, video, signals for digital communications and for wireless, telephone and internet applications; ] research, development and porting with respect to computer software for encoding, decoding and storing of audio, voice, data, images, video, signals for digital communications and for wireless, telephone and Internet applications; licensing of intellectual property rights with respect to computer software for encoding, decoding and storing of audio, voice, data images, video, signals for digital communications and for wireless, telephone and Internet applications