User guide

36
OTHER DORO KRONOS
TROUBLE GUIDE
If the phone doesn't work, please read this manual first.
THE PHONE DOESN'T WORK
P Control all cables..
P Connect a another ISDN-phone, that you know work. If this work there is problem
with your DORO Kronos.
P Try the phone on a another ISDN-line. If the phone work, the problem is in your
ISDN-line.
NO RING SIGNAL
P Control that the ring signal not is turned off. Observation that every MSN-number
have a own ring signal.
FORWARDING DOESN'T WORK
P This could depend on that your ISDN-line could not handle this function. (Function
Protocol). Take contact with your PTT.
THE CALLER IDENTITY GIVES WRONG NUMBER
P Control that the prefix function is correct.