Physical Interface

* Ethernet port (RJ-45, 10/100 base-T)
o 1-WAN port, for connect to router, ADSL modem (ATU-R), or switch hub directly.
o 4-LAN port, for PC or other network devices connecting.
* Telephony port (RJ-11)
o 8-FXS ports, to connect with analog phone (POTS)
* Reset button (Factory Default)
* AC power Jack
* Status indicated LED
* Indicates Ethernet, FXS, and SIP system status

Specifications

* IP Network connection
o IPv4 (RFC 791)
o MAC Address (IEEE 802.3)
o PPPoE Client (RFC 2516)
o DNS Client
o DHCP Client (RFC 2131)
o DHCP Server (RFC 2131)
o NAT (RFC 1631)
o TCP/UDP (RFC 793/768)
o ICMP (RFC 792)
o RTP/RTCP (RFC 1889/1890)
o SNTP (RFC 2030)
o TFTP Client
o Telnet Server
o HTTP Server
o QoS: DiffServ (RFC 2475) / ToS (RFC 791/1349)
* IP Telephony (VoIP)
o SIPv2 (RFC 3261)
+ Session Timer (RFC 4028)
+ Outbound proxy setting for increasing Performance, Productivity, and security.
+ SIP proxy redundancy- Setting Primary and Secondary proxy by IP or URI.
o Voice Codecs
+ G.711 (a-Law/u-Law)
+ G.723.1: 6.3k bits
+ G.729A
+ G.729
o VAD – Voice Activity Detection with Silence Suppression
o CNG – Comfortable Noise Generation
o Silence Suppression
o Echo Cancelation (G.165/G.168)
o Signaling Protocol: Loop Start
o Jitter Buffer – Adaptive & Configurable
o Packet Loss Compensation - increasing voice quality
o DTMF: In-band, Out-of-band (RFC 2833), and SIP-Info
o Caller ID Generation – FSK
o FAX transmission:
+ G.711 pass-through
+ T.38 Fax relay
o Tone Generation:
+ Ringing Tone
+ Ring Back Tone
+ Dial Tone
+ Programmable Tone
o Call Features
+ Call Hold
+ Call Transfer (Blind & consultant)
+ Call Forward (Unconditional / No Answer / Busy)
o MWI – Message Waiting Indiacation
o IP line hunting
o Adjustable volume level
* Security
o HTTP 1.1 basic/digest authentication for WEB access
o MD5 for SIP authentication (RFC 2069/2617)
o Password protected Admin access authority

Setting and maintenance

* Configure & Update method
o Web Browser (HTTP)
o Telnet
o FTP/TFTP
* Voice announcement of IP address

Environmental

* Dimension: 35 × 242 ×160 mm (Desktop)
* Weight: 0.935kg (unit)
* Operating Temp. & Humidity
o Temp.: 0°C~45°C (32°F~113°F)
o Humidity: 10%~85% relative humidity, non-condensing
* Storage Temp. & Humidity
o Temp.: 0°C~55°C (32°F ~131°F)
o Humidity: 10%~95% relative humidity, non-condensing
* AC Power Adaptor:
o INPUT: AC100V~240V, 50/60Hz
o OUTPUT: DC 12V, 3.0A
* Regulatory: FCC (Part 15, Class B) & CE Processing