Product overview, Eatures, Able – Grandstream Networks HT496 User Manual

Page 7: Ht496, Echnical, Pecifications, Roduct, Verview

Grandstream Networks, Inc.

HT496 User Manual

Page 7 of 29

Firmware 1.0.3.86

Last Updated: 7/2007

RODUCT

VERVIEW

The HT496 is a full feature voice and fax-over IP device that offers a high-level of integration including
dual 10M/100Mbps network ports with integrated router, NAT, DHCP server, dual port FXS telephone
gateway, market-leading sound quality, rich functionalities, and a compact and lightweight design. The
H496 is fully compatible with SIP industry standard and is interoperable with most other SIP compliant
devices and software. It also supports comprehensive voice codecs.

EATURES

Ethernet Ports

DHCP

FXS Port

PSTN

Pass – through

Voice Mail

Indicator

Voice Codec

Remote

Configuration

2 RJ45 (LAN)

Server/

Client

Yes

iLBC, G.723,

G.711, G.729,

G.726, T.38

TFTP/HTTP

ABLE

2: HT496 Technical Specifications

Lines/SIP Accounts

2 lines / 2 SIP accounts

Protocol Support

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

RJ45 10 Mbps

Device Management

Web interface or via secure (AES encrypted) central configuration file for mass
deployment, Auto/manual provisioning system, Syslog support

Support device configuration via built-in IVR, Web browser or central configuration file
through TFTP or HTTP, Support Layer 2 (802.1Q, VLAN, 802.1p) and Layer 3 QoS
(ToS, DiffServ, MPLS)

NAT-friendly remote software upgrade (via TFTP/HTTP) for deployed devices including
behind firewall/NAT

DHCP Server/Client

Yes, NAT Router or Switched Mode

Audio Features

Advanced Digital Signal Processing (DSP), Adaptive jitter buffer control, Packet delay &
loss concealment

Support configurable Call Progress Tones

Support volume amplification, 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)

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

Fax over IP

T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax
Pass-through (pending)
Fax Datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay

Security

DIGEST authentication and encryption using MD5 and MD5-sess

Physical Design

Stylish and compact design; small universal power supply, ideal for travel