Grandstream HandyTone HT-503 ATA Analog Telephone Adaptor

Note: The Grandstream HandyTone HT-503 includes an AC power adapter.

The Grandstream 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 Grandstream 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.

• 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
• caller ID from both IP and PSTN,
• call waiting, 3-way conference with IP and/or PSTN,
• remote call origination and termination from/to PSTN,
• hop-on and hop-off calling,
• transfer to OR forward to IP or PSTN,
• do not disturb, message waiting indication,
• multi-language voice prompts,
• 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
• 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

Reasons to buy from IP Phone Warehouse:

Great Prices - At IP Phone Warehouse our goal is to offer you great prices on VoIP products. We strive to get you the best pricing on your VoIP equipment no matter the size of the purchase. At IP Phone Warehouse we feel that everyone deserves a great price and exceptional service.

Experienced Technical Staff - IP Phone Warehouse has a staff of experienced VoIP specialists. Our staff is knowledgeable and trained to support you with your VoIP implementation. We also offer phone and remote technical assistance. For more info on our technical support options click here.

Safe Place to Shop Online - IP Phone Warehouse offers a safe shopping environment. IP Phone Warehouse uses industry standard 128-bit SSL encryption to ensure your data remains safe. Additionally, IP Phone Warehouse is HACKER SAFE™ certified.

Flexible Payment Options - IP Phone Warehouse accepts major credit cards including: Visa, MasterCard, American Express, and Discover. IP Phone Warehouse also accepts Google Checkout payments. In addition to credit cards, IP Phone Warehouse accepts checks by mail and wire transfers.

Discount Membership Accounts - If you buy a lot of VoIP equipment, the VoIP Discount Membership Club may be just what you're looking for. The VoIP Discount Club is a yearly membership that will save you money on all items in our store. Click for more info.