Communication equipment, namely, telephones; electronic on-line indicators for use with telephones; headsets for use with telephones, mobile phones, personal digital assistants, two-way radios, computers, gaming machines, compact disc players, cassette tape players, DVD players, stereo receivers, televisions, and voice input-output devices for analog voice transmission; telephone headset amplifiers and adapters; computer software for use in connecting and interfacing communications equipment with a computer and/or computer network, and parts and attachments therefore