Grandstream HT503 

The Grandstream HandyTone HT503 is the next generation of powerful, affordable, high quality and manageable IP telephony ATA/IAD for residential users and road-warriors. The Grandstream HT503 features a compact size, excellent voice quality, robust functionality and best-in-class price-performance point enable consumers to maximize the power of IP voice and data connectivity.

• (1) FXS Port Onboard
• (1) FXO Port Onboard
• Dual 10/100 Mbps network ports (RJ45) with integrated high performance NAT router

Grandstream HT503 VoIP Adapter

The Grandstream HT503 (HandyTone 503) is based on SIP standard and interoperable with most 3rd party SIP compliant devices and software. The Grandstream HT503 features 1 FXS telephone port, 1 FXO PSTN line port, dual 10M/100Mbps network ports, port status and message waiting LED, and a base stand for vertical positioning.

Grandstream HT503 VoIP Adapter Overview

Grandstream HandyTone HT503 VoIP Adapters/IAD series offers a comprehensive line of affordable VoIP access devices based on Grandstream’s innovative and proprietary technology platform.

The Grandstream HT503 offers the entry-level IP Telephony user superb audio quality, rich functionalities, interoperability with the leading 3rd party VoIP providers, and compatibility with most service providers.

The Grandstream HT503 is compact, works with any PSTN or cordless phone and fax machines and offers the simplicity of plug and dial, making it ideal for the basic IP telephony user.

Grandstream HT503 Features and Functions

The Grandstream HT503 offers the following features:

• IP connectivity for any phone and fax
• Hop-on/Hop-off calling
• Web management for easy configuration and installation
• Offers traditional and advanced telephony features
• Portable and compact for use at home or on the road

Didn’t find the VoIP Adapter you were looking for?

Check out these other Grandstream VoIP adapters:

• Grandstream HT286
• Grandstream HT486
• Grandstream HT502