we had installed a communication (EPABX system) within a site. It was working 2 weeks short any problem. Suddenly all the extensions are ringing and extension dial tone go dead. But the digital phone is working fine. We enjoy connected individual earthing to the system. UPS power is given. It is happening for olden times three days. what would have gone wrong contained by the system.
Answers:
mate its best that you call up the personage responsible for fitting this one or the shop you got it from. i be a receptionist and had face many such problems and we used to name the customer care support service guys
best wishes
Get within touch with the installing comapny.
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