Beam your phone up with these great ringtones from the Star Trek tv series. Star Trek TOS - Fight scene Shields up, Red Alert, Fire Phasers - Powerslave. A non-comprehensive sampling of alarms and alerts from Star Trek. Anyone who has a link for TOS/TNG. Download free sound effects from Star Trek TOS. Red alert, wav · aif · ogg · mp3. Intercom, wav · aif · ogg · mp3. Transporter, wav · aif · ogg · mp3. Transporter.