Hinweissignal: Telefon
This image is sign number 4.81 from the list of signals of road signs of the SR/RS 741.21 Signalisationsverordnung (SSV, Signage Regulation) of the de:Bundesamt für Strassen (ASTRA, Federal Roads Office (FEDRO)), version of 21 November 2006 - SSV Revision 2005.
Bundesamt für Strassen (ASTRA)