AA701 Desk/Wall Master Station with Display

• Loudspeaking/Handsfree

• Confidential and Privacy

• Microphone cutout

• T-button for manual control of the speech direction

• Camp on busy/queue feature

• Display information

• Call reply

• Last number redial

• Call last caller

• All call (with reply back)

• 2 Group calls (with reply back)

• Door opening

• Program distribution (music)

• External loudspeaker

• Emergency call

• Silent alarm

AB731 Substation

• aluminum with a stainless steel front-plate

• optimal protection of the push-button, microphone and loudspeaker

• internal loud-speakers with 3 Watt amplifiers

• external speaker connected easily 

• call button for "Doorbell" function, Call-in function and
  Emergency Call
  
   

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