I have purchase a COID(8)-U10 ETU. I installed it but I get no dial tone at the phone, put the old COI(8)-U10 ETU back in I have dial tone. Do I need to change some programming for this to work? If so can someone give me some direction?
Thanks!
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.