Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
H04M1/00—Substation equipment, e.g. for use by subscribers
H04M1/26—Devices for calling a subscriber
H04M1/30—Devices which can set up and transmit only one digit at a time
H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
Landscapes
Engineering & Computer Science
(AREA)
Signal Processing
(AREA)
Interconnected Communication Systems, Intercoms, And Interphones
(AREA)
Einrichtung zur Verhinderung von Störungen währendEinrichtung zur Verhinderung von Störungen während des Anrufs einer von mehreren an einer gemeinsame des Anrufs einer von mehreren an einer gemeinsamen Leitung liegenden Sprechstellen. n Leitung liegenden Sprechstellen.