Modelo: GS-386

Grandstream HandyTone 386 is an “All-In-1” VoIP IAD based on SIP standard. Built upon Grandstream’s innovative technology，HandyTone 386 features superb sound quality, rich functions, high degree of integration, ease of use, compact size, and ultra-affordability.

Single RJ45 WAN Port
Dual FXS RJ11 Ports
PSTN Pass-through capability
Support SIP2.0 ， TCP/UDP/IP ， RTP/RTCP ， HTTP ， ICMP ， ARP/RARP ， DNS ， DHCP (both client and server) ， NTP ， PPPoE，TFTP, etc.
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