The HandyTone 503 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.
HandyTone HT-503 Features
- 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
Grandstream HandyTone ATA Comparison Guide
| Features |
HT-286 |
HT-502 |
HT-503 |
| Ethernet Ports |
1x 10Mbps
(LAN) |
2x 10/100Mbps
(LAN/WAN) |
2x 10/100Mbps
(LAN/WAN) |
| NAT/Router |
No |
Yes |
Yes |
| DHCP |
Client |
Client/Server |
Client/Server |
| FXS Port |
1 |
2 |
1 |
| FXO Port |
No |
No |
Programmable |
| PSTN Pass-through Port |
No |
No |
Yes |
| Voicemail Indicator |
Yes |
Yes |
Yes |
| |
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