Grandstream HandyTone HT486

The Grandstream HandyTone HT486 is an analog telephone adaptor which allows you to plug a standard phone into your broadband Internet connection or local area network allowing you to make VoIP calls. The HT486 also allows you to make calls through the normal phone network.

• Dual RJ45 (LAN & WAN)
• Single RJ11 - FXS
• PSTN Pass-through
• Built in DHCP, NAT & Router
• Support SIP2.0 ， TCP/UDP/IP ， RTP/RTCP ， HTTP ， ICMP ， ARP/RARP ， DNS ， DHCP (both client and server) ， NTP ， PPPoE，TFTP, etc.
• Built-in router, NAT and Gateway
• Powerful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive jitter control and packet loss concealment technology
• Ultra compact (wallet size) and lightweight design, great companion for travelers
• Support various vocoders including G.711 A-/U-law ， G.723.1, G.729A/B, G.728, G.726, iLBC.
• Support Caller ID/Name display or block, Hold, Call Waiting, Call Transfer, Call Forward, Auto Answer (Intercom), Flash
• Support customizable ring tone and fax pass through
• Support silence suppression and VAD ， AGC ， and echo cancellation (G.168)
• Support standard encryption and authentication (DIGEST using MD5 and MD5-sess)
• Support layer-2 (802.1Q VLAN, 802.1p) and layer-3 (DiffServ, ToS) QoS
• Support automated NAT traversal without manual manipulation of firewall/NAT
• Support remote automated provisioning and software upgrade even through firewall/NAT to enable "zero configuration" and "plug-and-dial" for end users
• Support device configuration via built-in IVR, Web browser or central configuration file

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