atcomsystems.ca/forum Forums TDM Business Telephone Systems Avaya - Lucent Telephones & Systems Viking Universal Door controller

Thanks Hal for the link and it's an ACS 3.0 and you are probably correct in the cost but, to answer your question....there were 2 of these in boxes in the shop and I have a customer that wants a door phone and I figured it would work. The partner doorphone is obviously the way to go if I didn't have this equipment already.