[Freeswitch-users] Problem with hangin bri

Hi, I have some problems with bri status. I have 3 chanel isdn modem, and zaptel compatible quad bri card. I can invoke calls from my voip phone to cell phone, and vice versa, but when i make inbound and outbound connection in nearly same time something goes wrong with chanells and after few calls all of them has hangup status. There is log about that in attachement, see "is already in use waiting for it to become available." phrase. Time of this event is about 14:43:35. Unload and Load open_zap module helped, but its not an solution because of lost connections.