1,8 channel-32 sims gsm gateway 2,IMEI auto rotate 3,Call termination 4,automatic rotate( ... -11 of FXS/FXO port connection of any PBX, VoIP Gateway, head line phones or system. 3,The Parameters Of SKYLINE ... serted or not Pay attention: This model is suitable for country with problem of Block SIM Card A,Support Auto update ...