IEEEand IETF protocols

• 802.3 /802.3 u 10 Base T / 100Base TX
• MGCP (RFC2705)
• IAX2(Inter-Asterisk eXchange V2)
• SIP(RFC2543£¬RFC3261)
• Reliability of Provisional Responses is the SIP(RFC3262)
• Http Authentication(RFC2617)
• SDP(RFC2327)
• SIP INFO Method(RFC2976)
• An Offer/Answer Model Session Description Protocol(RFC3264)
• SIP UPDATE Method(RFC3311)
• SIP REFER Method(RFC3515)
• SIP PSTN Call Flows (RFC3666)
• SIP FRAG.message(RFC3420)
• TCP(RFC793)
• IP(RFC791)
• UDP(RFC768)
• ICMP(RFC792)
• ARP(RFC826)
• SNTP(RFC2030)
• Telnet(RFC318)
• HTTP(RFC2616)
• DHCP(RFC2131)
• FTP (RFC959)
• TFTP (RFC1350)
• PPPoE(RFC2516)
• DNS(RFC1034,RFC1035)
• RTP or RTCP(RFC1889)

• H.323 V4
• H.225.0 RAS
• H.225.0 Q931
• H245
• H235
• Support normal, Fast start and tunnel call model.
• G.711a/µ; G.723.1 5.3/6.3k;G.729,a,b,ab;GSM610;iLBC Compression.
• G.165/G.167 16ms acoustic echo cancel (AEC)
• Voice activity detection (VAD), Comfort noise generation(CNG)
• Configurable jitter buffer (Maximum 32 voice frames)
• Accord with ITU-T standard signal tone
• DTMF generation and detection
• E.164 dial plan and customized dial rules

Firmware Feature

• IVR Voice prompt (Chinese, English, Japanese, German, French,Spain,Italy)
• Multilingual WEB UI (Chinese,English,Japanese, German, French,Spain,Italy)
• Support In-band audio and RFC2833 used to DTMF relay
• CID display used to FSK
• 100 entries for speed dial
• Hotline
• Support adjustable user password and super password

Setting and Upgrade

• HTTP
• Telnet (CLI)
• HTTP;FTP;TFTP centralized configuration and upgrade

Processor

• CPU-1688
• 50MHz 8051compatible controller
• 50MHz AD2181compatible DSP core

Memory

• 2MB (1 x 16M) SDRAM
• 2MB Flash ROM 

LAN Ports (1 or 2)

• 1 RJ-45 port(10M)  auto detection(only multi-port model)

FXS Interface

• 1 RJ-11 analog telephone Interface
• Ringing Voltage 50V(RMS)
• Ringing Frequency 25HZ
• Loop Current 23mA
• balance impedance 600Ω(programmable impedance)

Optional External PSTN Interface

• An optional RJ-11 interface enables the TA to access PSTN as life line

LED (4)

• Power, network , state and voice message indication.

Operating Environment

• Temperature: 32-104° F (0-40° C)
• Humidity: 20%-90%,non-condensing 

Power Requirement

• External power adapter, Input 100-230V AC, Output 9VDC, 400mA or 1000mA
• PoE(only support 802.3af model)

Regulatory Approvals

• UL 1950, C/µL
• CSA C108.8
• CE
• VCE EN60950
• FCC Part 15 Class B
• CISPR 22 Class B
• CCC