... ports for the LAN and an additional device Quad band GSM module: support GSM 850MHz, 900 MHz, 1800 MHz, 1900MHz Speech quality ... Plan Password protection for both GSM dial in or dial out Retransmit GSM Caller ID to VoIP terminal Dynamic selection of codecs ... : ARM9E 133MHz DSP: VPDSP101 95MHz Memory: RAM 8MB/ Flash 4MB GSM Module: Type: 850MHz, 900MHz, 1800MHz, 1900MHz Power: Input AC100V ~ 240V, ...