... usb modem 2,sending bulk SMS 3,with bulk sms software 4,quad band 5,AT Command Best quality 16 port usb gsm modem ... & external antenna usb modem description: Our gsm modem is made of ... introductionGSM MODEM pool also known as "SMS cat pool" in China, USB 2. ... industrial chassis, elegant shellKey FeaturesUSB GSM modem poolBased on Wavecom industrial modules Q24plus,Q2406 ...