The Handy Tone 503 offers the next generation of powerful, affordable, high quality and manageable IP telephony ATA/IAD. The integration of a FXO and FXS port enables remote call origination and termination to and from the PSTN line, known as "hop-on and hop-off" calling. This functionality coupled with its compact size makes it an ideal solution for road warriors seeking the savings and benefits of voice-over-ip communication.

GrandStream 1-FXS/1-FXO Port Analog TelephoneAdapter

Description: ?<br/><br/>- 1 Fxs Telephone Port (Rj11), 1 Fxo Pstn Line Port (Rj11) With Power-Outage Life Line Support<Br />- Up To 2 Sip Account Profiles, Sip Over Tcp/Tls, Srtp<Br />- Dual 10/100 Mbps Network Ports (Rj45) With Integrated High Performance Nat Router<Br />- Status Led For Power, Telephone, Pstn Line, Network, And Message Waiting Indication<Br />- Advanced Telephony Features<Br />- Comprehensive Voice Codecs<Br />- Secure And Automated Provisioning Using Http/Https/Telnet/Tftp<Br />- Symmetric And Asymmetric Voice Codec/Rtp In Any Call Sessions<Br />- T.38 Fax<Br />- Sip Over Tcp/Tls<Br />- Ip Connectivity For Any Phone And Fax<Br />- Hop-On/Hop-Off Calling<Br />- Web Management For Easy Configuration And Installation<Br />- Offers Traditional And Advanced Telephony Features<Br />- Portable And Compact For Use At Home Or On The Road<Br /><Br />Gsht503 <br>

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.