[Freeswitch-users] [CS_NEW] [WRONG_CALL_STATE] with incoming calls

Hi guys! I have a problem with my freeswitch server and I need some help. All incoming calls are not working since yesterday. All I did is to change the IP address. The only error message I have is this one: [WARNING] switch_core_state_machine.c:514 7b24f8fa-6ae6-11e2-a6be-25229cd2cfbb sofia/internal/XXX@XXX.XXX.XXX.XXX:5060 Abandoned [NOTICE] switch_core_state_machine.c:517 Hangup sofia/internal/XXX@XXX.XXX.XXX.XXX:5060 [CS_NEW] [WRONG_CALL_STATE] What does Wrong call state mean and what can I do to fix this issue? Everything else is working. I can make outgoing calls and call other extensions. Thanks in advance. Fred