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Turkcell Calls to Other Networks Have No Ring Sound Until the Call Is Answered
I've been having a problem with Turkcell's GSM service when I try to call numbers on other networks. When I make a call,... I don’t hear the ringing until the other person picks up, so I can’t tell if the call is going through or not. I contacted Turkcell about this, but they’re not recognising that it
