When I created this website in 2003, I wanted it to become a helpful resource for telephone engineers and end-users looking for information that is no longer freely available elsewhere. To that end I've posted wiring diagrams, user guides, operator's instructions and programming manuals whenever I have them available as PDFs. I also have a large archive of paper versions amassed during my thirty-four year career. I'm usually happy to give my advice freely when contacted by e-mail or by phone, indeed many or you may well have been helped in this way. If you have, I'd be grateful for any donations to show your thanks. I do not use premium rate phone lines for tech support so these donations, no matter how small, are a big help. A PayPal account is not required, you can donate by credit card.
Many thanks.
Dennis Hanna
A PayPal account is not required, you can donate by credit card.