Downloadable telecommunications software, namely, Internet telephone communications software in the nature of telephony software; downloadable software for the electronic, electric, and digital transmission of voice, sound, video, images, signals, data, and messages over a global communications network in the field of telecommunications; downloadable software for the electronic, electric, and digital transmission of voice, sound, video, images, signals, data, and messages, namely, presence and multi-media content over a global communications network in the field of telecommunications; voice over Internet protocol telephony software; video over Internet protocol software; instant messaging software; downloadable software for the electronic transmission of messages among computer users in the field of telecommunications; audio and video teleconferencing software