GSM Module - 2 SIM
GSM module with 2 SIM card slot for ZYCOO IP PBX systems U50, U60, U80 and U100.
GSM module with 2 SIM card slot for ZYCOO IP PBX systems U50, U60, U80 and U100.
GSM module with 1 SIM card slot for ZYCOO IP PBX systems U20, U50, U80 and U100.
GSM module with 4 SIM card slot for ZYCOO IP PBX systems U50, U60, U80 and U100.