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Top » Catalog » VoIP / SIP Gateways » IP Analog Adapters » HT503

Grandstream HandyTone (HT) 503 Analog Adapter
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Grandstream HandyTone (HT) 503 Analog Adapter
  • 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
  • 14 day money back guarantee
  • 30 day email support for technical installation issues
Product Overview
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.
Key Benefits
  • Full Feature Voice/Fax-over-IP analog adapter
  • 1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11)
  • Integrated router, NAT and gateway
  • Ultra-Compact and lightweight
  • Universal Plug and dial based on SIP protocol
  • Cost Effective - Reuse existing analog phones and fax machines
Technical Specification
  • Dual RJ45 10/100 Ethernet Connection (WAN/LAN)
  • DHCP, NAT and router functionality
  • 1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with power-outage life line support
  • Support SIP 2.0, TLS, TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP, DNS, DHCP (both client and server), NTP, TFTP, PPPoE, STUN, UPNP, etc.
  • Built-in router, NAT, gateway, DMZ, and port forwarding
  • Powerful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive jitter control and packet loss concealment technology
  • Message waiting LED
  • Stand to allow device to be mounted vertically
  • Extensive codec support, including G.711, G.723.1, G.729A/B, G.729E, G.728, G.726-40/32/24/16, iLBC
  • CallerID/Name display and block, hold, call waiting, call transfer, call forward, flash, three-way calling
  • Customizable ring tones
  • Fax pass-through and T.38
  • SIP over TCP/TLS
  • Silence suppression and VAD, AGC and echo cancellation (G.168)
  • Layer 2 (802.1Q VLAN, 802.1p) and layer 3 QoS (DiffServ, Tos)
  • Automated NAT traversal without manual manipulation of firewall/NAT
  • Remote automated provisioning and software upgrades, even through firewalls and NAT to enable "zero configuration" and "plug and dial" for end-users
  • Configuration via built-in IVR, web browser or central provisioning

Available Options:
Power Supply Unit Type:
UK 3 Meter RJ-11 <-> BT Cable:
UK RJ-11 <-> BT Ring Adapter:
This product was added to our catalog on Wednesday 23 March, 2011.

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Grandstream HandyTone (HT) 502 Analog Adapter

Grandstream HandyTone (HT) 502 Anal


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