Grandstream HandyTone HT503 ATA/IAD

The HandyTone 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.

» Based on SIP standard and interoperable with most 3rd party SIP compliant devices and software

» Dual 10M/100Mbps network ports, port status and message waiting LED, and a base stand for vertical positioning

» Traditional and advanced telephony features including mutli language voice prompts and transfer to or forward to IP or PSTN

Replaces HT486.

Grandstream HandyTone HT503 ATA/IAD

• 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
• o caller ID from both IP and PSTN,
• o call waiting, 3-way conference with IP and/or PSTN,
• o remote call origination and termination from/to PSTN,
• o hop-on and hop-off calling,
• o transfer to OR forward to IP or PSTN,
• o do not disturb,
• o message waiting indication,
• o multi-language voice prompts,
• o flexible dial plan, direct IP calling
• 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
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• SIP over TCP/TLS
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• Benefits
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• 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