Hi how are you,I am a buyer from I2R Labs located in India. I am interested in placing your BH211 2-wire 3 ways Intercom system/elevator parts on the market.Please share the product manual. How many meters we can connect to? Does it have echo and noise issues? How is the voice quality? Can it be connected to multiple receivers? Can the call be initiated both sides? Hope you reply to all my questions so I could proceed with buying.With RegardsBalakrishnan I2R Labs
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