Spanning 80 m2, the Museum allows visitors to explore over 230 years of telecommunications and telephone history through more than 150 telephone sets, objects and documents. The tour begins with Chappe's optical telegraph. It continues with the beginnings of telephony in 1876, then its evolution to the present day. Showcases feature directories, payphones, telematics and Minitel. The tour ends with operator panels and a 1910 phone booth.

Guided tours in Spanish available.