Our Norstar Meridian phone system with 13 lines and roughly 40 phones operated flawlessly until we added voice mail (Star Talk Flash Modular DR5). Since adding voice mail the system, it will occasionally disconnect all lines, shut down, and then restart, in essence a reboot. This occurs most often when a call is sent to voice mail by the receptionist and will occur on average 6 to 12 times per month. We have replaced the voice mail module without solving the issue. Any ideas?
Don
Don