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Quick Overview

The Grandstream HandyTone HT503 ATA/IAD is an Analog Telephone Adapter (ATA) and VoIP Router. This small machine packs a serious punch.

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Grandstream HandyTone HT503 Information:


The Grandstream HandyTone 503 gives users the next generation of strong, inexpensive, top 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.




  • IP connectivity for any phone and/or fax
  • Hop-on or Hop-off calling
  • Web management for simple installation and configuration
  • Traditional and advanced telephony features


Mfg. Part Number: HT503

UPC Code: 6947273700074


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