... channel-64 sims gsm gateway 2,IMEI change automatically 3,Call termination 4,automatic rotate(8ports64SIMcards) 5,SIP Key features:- ... quick dial and slow dial.(dialdelaytime)-Support CLIR(callinglineidentityrestriction)-Forbid incoming call-Set IP number before the number-Set the number can ... another base station that can be used. 4,Auto answer incoming call,Auto hang up after 3-4 seconds 5,Auto send ...