I have what looks like a phone that is very similar to the one in the link
http://www.daclimited.co.uk/user%20g...20complete.pdf
but appears to be a much older model. I've checked the hand set and get about 40 ohms on the mic and recv. so I know that's working but when I check for continuity on (what appears to be) terminal 3 and 6 (for line A and B) I just get open ctt. The ringer is open ctt so that's much help. The problem is it's all solid state which I'm a bit clueless on. It's also been sealed in some sort of resin so it's impossible to get any useful readings anyway.
I've attached a pic of my terminal connections which appear to be quite different from the one's in the current product manual so if anyone has any idea's on what should go where that would be great. I'm also wondering if I'm missing a link or two between some of the terminals before the thing will work?
Any help gratefully received though I must admit it's not looking good
