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Grandstream HT503 Robust Analogue Telephone Adapter

Robust analogue telephone adapter with 2 SIP accounts

Manufacturer Ref.: HT503 Product Ref.: GRAHT503UK
Grandstream HT503 Robust Analogue Telephone AdapterGrandstream HT503 Robust Analogue Telephone AdapterGrandstream HT503 Robust Analogue Telephone Adapter

Key features

  • Robust analogue telephone adapter
  • 2 SIP accounts
  • IP connectivity for telephones and fax machines
  • Built-in voice prompt menu

This product is no longer manufactured
Product end of life
This product have been replaced by Grandstream HT813 Adapter
+1 Year Extended Warranty
  • This product has a manufacturer warranty of
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For only £15.00 more, secure your purchase for 3 years

  • Extend your warranty for your purchase with Onedirect's 1 Year Gold Warranty
  • Defective products will be exchanged for new products within 24h/48h (from the date of receipt of the product)
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  • Return costs are reimbursed by Onedirect, as well as shipping costs in case of replacement of defective products
£15.00
Product information

Powerful and strong VoIP easy to manage

The Grandstream HT503 is a robust analog telephone adapter. This device offers the next generation powerful, affordable, high quality and manageable IP telephony.

Hop-on and Hop-off Call

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 function coupled with its compact size makes it an ideal solution for road warriors seeking the savings and benefits of VoIP communication.

User-Friendly Voip

The Grandstream HT503 is designed to be a user friendly and affordable VoIP solution for both the residential user and the remote user. It has a built-in voice prompt menu for simple device configuration.

Features:

  • Up to 2 SIP accounts
  • Built-in voice prompt menu
  • 1 FXS telephone port (RJ11) & 1 FXO PSTN line port (RJ11) with power-outage life line support
  • Dual 10/100Mbps ethernet ports (RJ45) with integrated high performance NAT router
  • IP connectivity for telephones and fax machines
  • Advanced telephony features including caller ID, call waiting, 3-way conference calling with IP/PSTN, call transfer & message waiting indication.
  • Dimensions: 115 x 25 x 75mm
  • Factory reset button
  • LED indicators: Power, WAN, LAN, PHONE and LINE
  • Voice features: G711, G723, G729
Warranty 2 years
Dual WAN Without dual WAN
LAN ports 1
Dimensions 25 x 115 x 75 mm
In the box
Grandstream HT503
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