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Grandstream Networks, Inc. HT–496 User Manual Page 7 of 33
Firmware 1.0.3.64 Last Updated: 1/2007
Product Overview
HandyTone-496 is a next generation dual-port SIP IAD for Internet data, voice, and fax.
KEY FEATURES
Ethernet
Ports
DHCP
FXS
Port
PSTN
Pass –
through
Voice Mail
Indicator
Voice Codec
Remote
Configuration
2 RJ45 (LAN)
Server/
Client
2 No Yes
iLBC, G.723,
G.711, G.729,
G.726, T.38
TFTP/HTTP
T
ABLE 2: HT–496 Technical Specifications
Lines/SIP Accounts
2 lines / 2 SIP accounts
Protocol Support(1)
SIP 2.0 (RFC 3261), TCP/UDP/IP, RTP/RTCP, HTTP, ARP/RARP, ICMP,
DNS, DHCP, NTP, TFTP, PPPoE protocols
Feature Keys
1 button
LAN/WAN Interface
RJ-45 10 Mbps
Device Management
Web interface or via secure (AES encrypted) central configuration file for mass
deployment
Support Layer 2 (802.1Q, VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ,
MPLS)
Auto/manual provisioning system
NAT-friendly remote software upgrade (via TFTP/HTTP) for deployed devices
including behind firewall/NAT
Audio Features
Advanced Digital Signal Processing (DSP)
Dynamic negotiation of codec and voice payload length
Support for G.723,1 (5.3K/6.3K), G.729A, G.711 µ/A, G.726, and iLBC codecs
In-band and out-of-band DTMF ((in audio, RFC2833, SIP INFO)
Silence Suppression, VAD (voice activity detection), CNG (comfort noise
generation), ANG (automatic gain control)
Adaptive jitter buffer control
Packet delay & loss concealment
Call Handling
Features
Caller ID display or block, Call waiting caller ID, Call waiting/flash, Call
transfer, hold, forward, mute, 3-way conferencing
Network and
Provisioning
Manual or dynamic host configuration protocol (DHCP) network setup; RTP
and NAT support traversal via STUN
Security
DIGEST authentication and encryption using MD5 and MD5-sess
Physical Design
Stylish and compact design; small universal power supply, ideal for travel
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