Grandstream HandyTone 488 1-Port FXS Adapter, 1-Port FXO Adapter w/ Router.
General Information
Plug, Dial, and Save
The Grandstream HandyTone ATA-488 is an award-winning next generation VoIP analog telephone adaptor based on industry open standards. Built upon innovative technology, Grandstream HandyTone Analog Telephone Adapters (ATA) features market leading superb sound quality, compact size, and rich functionalities at a highly-affordable price.
Features:
Interfaces -
1 RJ45 10Base-T LAN connection
1 RJ45 10Base-T WAN connection
1 RJ11 PSTN Analog Connections
1 RJ11 FXO Port
PSTN Pass-through
Lifeline
Supported Protocols -
SIP 2.0
TCP/UDP/IP
RTP/RTCP
HTTP
ICMP
ARP/RARP
DNS
DHCP
NTP
TFTP
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)
NAT-friendly remote software upgrade capability (via tftp) even from behind firewalls/NATs.
Support for fail-over SIP server and DNS server (pending)
