When we buy new device such as Aastra Telecom BE-3872 we often through away most of the documentation but the warranty.
Very often issues with Aastra Telecom BE-3872 begin only after the warranty period ends and you may want to find how to repair it or just do some service work.
Even oftener it is hard to remember what does each function in Cordless Telephone Aastra Telecom BE-3872 is responsible for and what options to choose for expected result.
Fortunately you can find all manuals for Cordless Telephone on our side using links below.