Grandstream Handytone 488 Analog VoIP adapter

Grandstream HandyTone 488 is an All-In-1 VoIP IAD based on SIPstandard. Built upon Grandstreams innovative technology,HandyTone 488 features superb sound quality, rich functions, high degree of integration, ease of use, compact size, and ultra-affordability.

Grandsteam 488 Analog Adapter HT-488

• Dual RJ45 (LAN & WAN)
• Dual RJ11 - (1) FXS, (1) FXO
• Built in DHCP, NAT & Router
• PSTN Pass-through

• 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