First let them know if they go into the programming it voids all your warranties. I would also let them know that if they do hose it your only option is to default it and start from scratch to reprogram at their cost. After that if they still insist in doing it themselves I would setup a support rate and charge for your time and knowledge.


Business Telephones & Equipment + Commercial Audio/Video Products
Commercial Communications . . . Turner, Maine
If it was built after 1980 don't expect it to work right.