Grandstream Networks

Grandstream Networks HandyTone 503 FXS FXO VoIP Adapter

SKU: GSHT503 MFR: HT503
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About this item

The Grandstream HandyTone 503 FXS FXO VoIP Adapter 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.

Key Features

  • 1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with power-outage life line support
  • Up to 2 SIP account profiles, SIP over TCP/TLS, SRTP
  • Dual 10/100 Mbps network ports (RJ45) with integrated high performance NAT router
  • Status LED for power, telephone, PSTN line, network and message waiting indication
  • Advanced telephony features
  • Comprehensive voice codecs
  • Secure and automated provisioning using HTTP/HTTPS/Telnet/TFTP
  • Symmetric and asymmetric voice codec/RTP in any call sessions
  • T.38 Fax
  • SIP over TCP/TLS
  • 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

Technical Specs

Telephone Interfaces 1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with lifeline support Two (2) 10M/100 Mbps ports (RJ45) with integrated Nat router
Network Interfaces Two (2) 10M/100 Mbps ports (RJ-45) with integrated NAT router
LED Indicators Power, WAN, LAN, PHONE and LINE
RESET Button Factory Reset Button
Voice Codec G.711 Annex I (PLC) and Annex II (VAD/CNG format), G.723.1A, G.729A/B/E, G.726-40/32/24/16, iLBC
Voice over Packet Capabilities Voice Activity Detection (VAD) with Comfort Noise Generation (CNG) and Packet Loss Concealment (PLC), Dynamic Jitter Buffer, G.168 compliant Line Echo Cancellation
Fax over IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs, Fax Datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay
DHCP Server / Client NAT router Yes, can operate in NAT Router or Switched Mode
Network Protocols TCP/UDP/IP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN
QoS Support Layer 2 (802.1Q VLAN, 802.1p), Layer 3 QoS (ToS, DiffServ) QoS
IP Signaling SIP (RFC 3261), SIP over TCP/TLS, SRTP, up to 2 SIP account profiles, symmetric and asymmetric RTP/codec in any call sessions
DTMF Method RFC2833 and/or SIP INFO
Provisioning & Management TFTP, HTTP, HTTPS, Telnet, secure and automated provisioning system for large deployment, syslog
Universal Power Supply Output: 12VDC, 0.5A
Input: 100-240 VAC, 50-60 Hz
Environmental Operational: 32deg.-104deg.F or 0deg.-40deg.C
Storage: 10deg.-130deg.F
Humidity: 10-90% Non-condensing
Caller ID REN3: Up to150 ft on 24 AWG line
Short and long haul Bellcore Type 1 & 2, ETSI, BT, NTT and DTMF-based CID
Polarity Reversal / Wink Yes
EMC FCC/CE, EN55022/EN55024 and FCC part15 Class B
Safety UL
Dimensions (HxWxD) 25x115x75mm / 0.98x4.53x2.95" when laying flat
115x25x75mm / 4.53x0.98x2.95" standing up
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