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DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

DIN EN 62820-1-2 ; VDE 0830-91-1-2:2018-06 [CURRENT] references following documents:

Document number Edition Title
IEC 62820-1-1 2016-09 Building intercom systems - Part 1-1: System requirements - General More 
ITU-T P.51 1996-08 Artificial mouth More 
ITU-T P.832 2000-05 Subjective performance evaluation of hands-free terminals More