When you take to the skies, take Telex! Clear. Reliable. Consistent. For more than 50 years, Telex has delivered the quality communication equipment that pilots depend upon for safe, enjoyable flying. In September 2006, Telex became a part of The Bosch Group. This acquisition brought Bosch quality standards to Telex through streamlined and modernized processes, as well as a renewed commitment to research and development.