I wont pretend to know anything about this model. I can see it has 4 switches with terminals. I have connected a line to it and get dial tone and when I dial get the numbers come up on my test equipment. The internal ringer is fully working when receiving. I think this may have been manufactured in small numbers as it is made from wood and my guess is that an external case could have been fabricated if needed. This would be great for a collector of Ericsson telephones. It is in great condition other than a small chip to the mouthpiece and a crack to the earpiece as shown in the pictures. Sold as a not working collectors item.
