atcomsystems.ca/forum Forums Other TDM Phone Systems 1A2 and Comkey Telephones & Systems Where to connect wires from 4a speakerphone

Thanks for the reply. I will check the actual connecting block reference as soon as I will receive it. But many speaker phone sets at Ebay are sold with the same connecting bloc than mine. I'm curious to know what is it made for. To be more precise, when I say 4A system, I only mean using a classic 2565 phone with a 108A speaker and his switch system.