1. Single FXS SIP Gateway. Single RJ11, Single RJ45
2. DHCP support for WAN or Cable modem
3. Support  Voicde Codec: G.711/ G723/ G726 /G.729
4. Web configuration through Built-in web server.
5. Support Voice Gain Setting, Jitter Buffer, VAD and CNG
6. Upgrading firmware and configurations by HTTP, FTP or TFTP
7. 1FXS +1LAN  Adapter ,small and exquisite, low cost.