8 port 8 sim card GSM Fixed Wireless Terminal dual band quad band IMEI change
Category: Telephone Answering Machines
1 ,Features: 1) It is a 8 channels GSM Gateway that has 8 ports FXS interfaces. 2) It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter etc. 3) Dialing tone frequency:450h ...