Grandstream Networks, Inc. HT-502 User Manual Page 7 of 35
Firmware 1.0.0.39 Last Updated: 03/2007

PRODUCT OVERVIEW
The HT–502 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 HT–
502 fully compatible with SIP industry standard and can interoperate with many other SIP compliant
devices and software on the market. Moreover, it supports comprehensive voice codecs including G.711
(a/µ-law), G.723.1, G.726 (16/24/32/48 bit rates), G.729A/B/E and iLBC.

KEY FEATURES

Ethernet
Ports DHCP FXS
Port PSTN Pass –
through Voice Mail
Indicator Voice Codec Remote
Configuration
2 RJ-45 (LAN) Server/Client 2 No Yes iLBC, G.711, G.723,
G.726(16/24/32/48),
T.38, G.729A/B/E TFTP/HTTP