Router

The ATA-17X series contain four models of gateway products: ATA-171, ATA-172 and ATA-171P. With outstanding design and dazzling appearance, Welltech ATA-17X series can satisfy all users and meet their different requirements. ATA-171/172 is one/two port analog telephony adapter, and user can connect with one/two analog phone set to enjoy VoIP application.ATA-171P is one-port analog telephone adapter plus one PSTN backup lifeline,which allows user to dial and receive PSTN/VoIP call in one identical phone set. Specification Physical interface RJ-45A. LAN X 1 for connecting to HUB or ATU-R directly B. PC X 1 for PC connection RJ-11A. Phone X 1 for ATA-171B. Phone X 2 for ATA-172C. Phone X 1, Line X 1 for ATA-171P Dimension: 9.9 X 9.9 X 3.2 cm Network and Protocol SIP v1(RFC2543), v2(RFC 3261) Outbound proxy Support backup proxy registration Support IP or domain name for primary andsecondary proxy address and auto switching is enabled IP/ICMP/ARP/RARP/SNTP TFT Client/DHCP Client/PPPoE Client Telnet/HTTP Server DNS Client NAT tranversal STUN UPnP Support ToS Security HTTP 1.1 basic/digest authentication for Websetup MD5 for SIP authentication (RFC2069/RFC2617) Voice feature Voice codec G.711 : 64k bit/s (PCM) G.726 : 16k/24k/32l/40k bit/s (ADPCM) G.729A : 8k bit/s (CS-ACELP) G.729B : adds VAD & CNG to G.729 VAD : Voice activity detection CNG : Comfortable noise generator LEC : Line echo canceller Packet Loss Compensation DTMF In-Band DTMF Out-Band DTMF SIP Info Tone generation Ring Tone Ring Back Tone Dial Tone Busy Tone Programming Tone Call function Call Hold Call Waiting Call Forward Caller ID Flash Volume Adjustment Speed dial key Phone book Firmware and configuration update Web Browser Telnet Voice configuration TFTP HTTP Environment AC Power 110~220