No ringing when queue is set up

Hi, i have got a little problem. When i set up my incomming calls like
Inbound_Rutes->Ring_Groups everything is ok but the problem starts when i use queues (Inbound_Rutes->Queues). Namely, when external caller dial my number he can call into my queue. He can even hear signal ring in his handset, but my phone doesn’t ring at all. In FOP i can see there is someone in a queue. Can anyone help me please? i am using CORE, Queues