Grandstream Networks Product Overview, Key Features, HT496 Technical Specifications, Dhcp

PRODUCT OVERVIEW

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.

KEY FEATURES

Ethernet Ports	DHCP		FXS Port		PSTN	Voice Mail	Voice Codec	Remote
					Pass – through	Indicator		Configuration
	Server/						iLBC, G.723,
2 RJ45 (LAN)				2	No	Yes	G.711, G.729,	TFTP/HTTP
	Client
							G.726, T.38
TABLE 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	Manual or dynamic host configuration protocol (DHCP) network setup; RTP and NAT
Provisioning	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
Grandstream Networks, Inc.	HT496 User Manual	Page 7 of 29
	Firmware 1.0.3.86	Last Updated: 7/2007