private void OnCallHappend(object sender, Call args)
{
CallInfo call = new CallInfo()
{
ATSCall = args,
To = abonentsService.GetAbonentByNumber(args.To),
From = abonentsService.GetAbonentByNumber(args.From)
};
if (args.Duration > TimeSpan.Zero)
{
call.Cost = args.Duration.TotalSeconds * Tariff.CostPerMinute;
callsService.PayForCall(call);
}
callsService.AddCall(call);
}