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Grandstream Networks, Inc. HT-386 User Manual Page 8 of 34
Firmware 1.0.3.64 Last Updated: 2/2007
TABLE 2: HT–386 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
RJ-45 10 Mbps
Device Management
Web interface or via secure (AES encrypted) central configuration file for mass
deployment
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)
Auto/manual provisioning system
NAT-friendly remote software upgrade (via TFTP/HTTP) for deployed devices
including behind firewall/NAT
Syslog support
DHCP Server/Client
Yes, Client
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
Support volume amplification
Support configurable Call Progress Tones
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