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VS-286 Grandstream HandyTone 286 VoIP Adapter Product Description The Grandstream HandyTone-286 (ATA-286) is an award-winning next generation VoIP adapter based on industry open standards.ATA-286 is simple to configure through an attached analog phone keypad, voice prompt, web interface or can be personalized via a central configuration file for mass deployments. The HandyTone-286 reduces the cost of voice over IP deployment by protecting legacy equipment and simplifying the installation process. Product Features The ATA-286 has one FXS and one Ethernet port which allows you to connect an analog telephone or fax machine to an Ethernet network. •Support SIP 2.0, TCP/UDP/IP, RTP/RTCP, HTTP, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP protocols
•Support NAT traversal using IETF STUN and symmetric RTP (compatible with Cisco�s ATA-186, etc)
•Advanced Digital Signal Processing (DSP) to ensure superb hi-fidelity audio quality
•Provides 1 LAN port and 1 FXS interface for any analog telephones, cordless phones, and fax machines
•Support transparent Fax pass-through and in the future T.38 (pending)
•Interoperable with various 3rd party SIP end user device, Proxy/Registrar/Server, and gateway products
•Advanced and patent pending adaptive jitter buffer control, packet delay and loss concealment technology
•Support popular codecs including G.723.1 (5.3K/6.3K), G.729A/B, G.711 (a-law and u-law), G.726, and
G.728. Dynamic negotiation of codec and voice payload length
•Support standard voice features such as Caller ID Display or Block, FLASH, in-band and out-of-band DTMF (RFC2833),
Dial Plans, off-hook auto dial, early dial, click-to-dial
•Support acoustic echo cancellation, voice mail with indicator, downloadable ring tone (pending)
•Support Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort Noise Generation), Line Echo Cancellation
(G.168), and AGC (Automatic Gain Control)
•Support DIGEST authentication and encryption using MD5 and MD5-sess.
•Provide easy configuration thru manual operation (attached analog phone keypad and voice prompt, Web interface) or
personalized automated provisioning via central configuration file for mass deployment.
•Support for Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
•Support for fail-over SIP server and DNS server (pending)
•NAT-friendly remote software upgrade capability (via tftp) even from behind firewalls/NATs.
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