... Quad-band 32 Ports gsm FWT pool 128sim cards with IMEI changeable 1.32 Port GSM/GPRS FWT,capable ... hang up at your will also.3.It is FWT with modem pool together,bulk voice call plus bulk SMS , ... play,4.32 RJ11 interface,you can connect it with 32 telephones5.IMEI is easy to change,just set ... by using time or call out times3) It can connect with ordinary telephone set, PBX , VOIP Gateway, Billing meter ...