The
HandyTone 488 is an All-In-1 Analgoue VoIP Adaptor based on SIP standard.
It features superb sound quality, rich functions, a high degree of integration,
ease of use, compact size and all at a great price.
The new Handytone-488 features 1 FXO gateway and 1 FXS port.

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The ATA488 does not currently support presentation of
caller ID for incoming calls via the PSTN port.
1 FXS Port
(for Analogue Phones) and 1 FXO gateway (for analogue
line)
SIP 2.0, TCP/UDP/IP, RTP/RTCP, HTTP,
ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP protocols
PSTN port for connection to your analogue line - automatic switchover
to landline in the event of an Internet failure
Built-in router, NAT and gateway - ideal for cable modem users
NAT traversal using IETF STUN and symmetric RTP (compatible with
Cisco's ATA-186)
Advanced Digital Signal Processing (DSP) to ensure superb hi-fidelity
audio quality
One LAN port & one WAN port for any analog
telephones, cordless phones and fax machines
Interoperable with various 3rd party SIP and user devices, Proxy/Registrar/Server,
and gateway products
Advanced and patent pending adaptive jitter buffer control, packet
delay and loss concealment technology
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
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,
entry dial, click-to-dial
Acoustic echo cancellation, voice mail with indicator, downloadable
ring tone (pending)
Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort
Noise Generation), Line Echo Cancellation (G.168) and AGC (Automatic Gain
Control)
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 personalised automated
provisioning via central configuration file for mass deployment
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