Missing Set up Manual

Question

I bought, a few years ago, an Radioshack Digital Answering Machine, which I have just resurrected and want to use again. It have a four mail box facility.The machine is still in pristine condition but I cannot remember how to set up the message or retrieve calls.Basically I have lost the original manual and was hoping you have one in a PDF format.Could you please confirm. The only model number I have been able to find on the device is 43-795.Thanks,Trevor Richards