User's Manual
FIRMWARE VERSION 1.0.0.5     HT802 USER MANUAL              Page 12 of 46 
DHCP Server/Client 
Yes, DHCP Client only 
Telnet Server 
Yes 
Fax over Ip 
T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-
through, Fax Datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay 
QoS 
Diffserve, TOS, 802.1 P/Q VLAN tagging 
Transport Protocol 
RTP/RTCP 
DTMF Method 
Flexible DTMF transmission method, user interface of In-audio, RFC2833, and/or SIP Info 
IP Signaling 
SIP (RFC 3261) 
Provisioning 
TFTP, HTTP, HTTPS, TR-069, XML 
Control 
TLS/SIPS , SIP over TCP/TLS 
Device Management 
Web interface or via secure encrypted AES or non-encrypted central configuration file for 
mass deployment using Grandstream binary file or xml format. Auto/manual provisioning 
system or via built-in IVR. 
NAT-friendly remote software upgrade (via TFTP/HTTP/HTTPS) for deployed devices 
including behind firewall/NAT. Syslog support. Full support of TR-069 management protocol 
and Telnet access. 
Dial Plan 
Yes 
Caller ID 
Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID 
Call Handling 
Features 
Caller ID display or block, Call waiting caller ID, Call waiting/flash, Call transfer, hold, 
forward, 3-way conferencing, message waiting, Do-Not-Disturb (DND), call-return service 
HARDWARE SPECIFICATION 
 The table below lists the Hardware and Technical specification of HT802.  
TABLE 4: HT802 HARDWARE AND TECHNICAL SPECIFICATIONS 
Telephone Interfaces 
2 RJ11 FXS port 
Network Interface 
1 RJ45 10/100 Mb Base-TX, Full Duplex port with connectivity LEDs 
LED Indicators 
POWER, INTERNET, PHONE1, PHONE2 
Factory Reset Button 
Yes 
Universal Switching 
Power Adaptor 
Input: AC 100–240 V 50/60 Hz 0.2A max 
Output: DC 5V, 1A, UL, FCC certified 
Environmental 
Operational: 32
o
–104
o
F or 0
o
–40
o
C 
Storage: 14
o
–140
o
 F  or -10
 o
 –60
o 
Humidity: 10–90% Non-condensing 










