Hi everyone.
I have not much knowledge about Phone System, i have SX200 LW17 H24.0.0 in my hotel.
And once in week, outgoing call stop working, when we try from cosole or any room, ahile dialing number, we hear busy signal. last time i turn off system and turn back on , it started working fine, this time i tried same did not work, then i remove Digital card(i think blue color card) and its started working. i know more people are in this forum are very knowledgable persons, can anybody tell me whats might be wrong?
