Grandstream Networks HT503 User Manual

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HT503 User Manual
PRODUCT OVERVIEW
The HT503 is an affordable, high-quality, integrated IP telephony solution for both the residential customers
and the ‘road-warriors’ who need advanced call features between traditional PSTN network and IP network.
The HT503 enables IP connectivity for any phone or fax using the FXS port and a web-based GUI for easy
configuration and installation. It functions as a true FXO gateway that enables remote call origination and
termination from/to PSTN and supports the feature of “hop-on/hop-off” using the programmable FXO port.
Software Features Overview
The HT503 features 2 SIP account profiles and supports advanced telephony features including caller ID,
call waiting, call transfer, 3-way conferencing (with either IP or PSTN calls), and multi-language voice
prompts. From a technical standpoint, the HT503 offers a power-outage survivable life line and internet-
disconnect survivable fail-over-to-PSTN support, dual 10/100Mbps Ethernet ports with integrated high-
performance NAT router, a flexible dial plan and a broad range of popular voice codecs.
Table 4: HT503 Technical specifications
Interfaces
1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with lifeline support
Two (2) 10M/100 Mbps ports (RJ45) with integrated Nat router
Protocol Support
TCP/UDP/IP, RTP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP,
PPPoE, STUN & TELNET protocols
LED Indicators
Power, WAN, LAN, PHONE, and LINE
RESET Button
Factory Reset Button

Grandstream Networks HT503 Specifications

General

Brand	Grandstream Networks
Model	HT503
Category	Telephone Accessories
Language	English