Secure and reliable voice transmission is an important part of fiber network installation. When you are setting up a network you will find that you need to speak to technicians in other areas. The normal method would be to communicate via walkie-talkies to transmit information which could include network passwords or addresses. Walkie-Talkies are very popular and the ability to have others listening in on your frequency is definitely not where you want to be. The OWL HOOTS Optical Talk Sets are a great alternative to walkie-talkies.