["50 sets of LAN", "> MOBILE routes setting,50 sets of MOBILE", "> LAN routes setting", "Support one stage diaing", "Support free mode-two stage dialing and assigned mode-one stage dialing 3G Frequecny: U Version:2G 850,900,1800,1900MHz, 3G 850,2100 MHz A Version:2G 850,900,1800,1900MHz, 3G 850,1900 MHz G Version:2G 850,900,1800,1900MHz, 3G 800/850/900/1900/2100HMZ Solution suggest 1. If you need the solution for 32 GSM ports,1 SIM per GSM port, you can buy MV-3732*1,(option:SBK-32*1,SS-128) 2. If you need the solution for 32 GSM ports,4 SIMs per GSM port, you can buy MV-3732*1,SBK-128*1,SS-128 3. If you need the solution for 64 GSM ports,4 SIMs per GSM port, you can buy MV-3732*2,SBK-128*2,SS-256"]