The IAD works with the most popular LINUX embedded operation system and has special CPU and DSP compression algorithms, featuring universal functions and applicable to a wide variety of needs. Basic features: 1.One 10/100 BASE-T WAN port, used to connect broadband data network 2.4 analog loops starts the FXS interface (RJ-11), used to connect 4 telephones 3.Supporting DHCP Client or static IP address allocation plan 4.Supporting 802.1Q VLAN and VLAN Tag 5.Mute compression and comfort tone generation technology ensure clear conversation quality. 6.Self-adaptive jitter cache ensures smooth voice function 7.Lost-packet compensation guarantee mechanism provides a better voice quality. 8.Built-in Internet gateway function 9.Supporting NAT (Network Address Translation) and NAPT 10.Supporting remote configuration of Web mode and remote software downloading/upgrading Specifications : 1.Reliability System availability > 99.999%, MTBF > 100,000 hours, MTTR < 5 min 2.Ambient requirements 3.Working temperature 0°C ~ 50°C 4.Storage temperature -10°C ~ 50°C 5.Relative humidity 5% ~ 95%, non-condensing 6.Technical Specifications for the interface attribute gateway 7.Product side: 18.6*14.7*7.2(mm) 8.Product weight: 0.64KG 9.Product side: 18.6*14.7*7.2(mm) 10.Product weight: 0.64KG