Hi - We are sorry to hear that you are having issues with the VTech CS5129. If there is not another phone off hook when it displays line in use, there may be temporary fluctuation in the line voltage. To determine whether it is a line or equipment failure, test your unit at another location. If the problem persists, your phone may have a malfunction. If the unit functions, it indicates a line or wiring problem. Contact your telephone company.
Thank you,
-VTech Support
2 years, 10 months ago
by
Posted by:
VTech Baby Monitors Team