Covering a wide range of Atlas business telephones has presented challenges; not only is the documentation on these systems difficult to come by, there is also a lot of mixed-up information regading compatibility between the phones.
The single most confusing aspect of Atlas boils down to their two differnt model families: DT-xx and ET-xx. While they do share some compatibility, the fact that Atlas Key Phones manufactured these two models using nearly-identical cast plastic bodies means that at some point everyone mixes up which model they truly need. Here is the breakdown:
If you're not sure which model you have, please contact us and we will answer any questions you may have.