The Grandstream HandyTone 503 (HT503) is the next generation of powerful, affordable, high quality and manageable IP telephony ATA/IAD for residential users and road-warriors. Its compact size, excellent voice quality, packed feature functionality and best-in-class price-performance point enable consumers to maximize the power of IP voice and data connectivity. The HandyTone 503 is based on SIP standard and interoperable with most 3rd party SIP compliant devices and software. It 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. The 503 offers more powerful feature functionality and significantly better data router performance than its predecessor, as well as a new stylish look and design.
FXS / FXO analog gateway adapter to connect to a VoIP Network
Dual 10/100 Mpbs ports (RJ45) with integrated router
1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11)
NAT/PAT transparency for plug & play deployment
1 year warranty against hardware defects