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Grandstream > 
Item#: 9SIA1EA0CJ2560

Grandstream HT502 HandyTone 502 Analog Telephone Adaptor

  • 2 RJ45 (LAN/WAN)
  • 2 FXS Port
  • Accessories
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Learn more about the Grandstream HT502






2 RJ45 (LAN/WAN)
2 FXS Port


Grandstream HandyTone 502 analog telephone adaptor

Enhanced security

Automated provisioning using symmetric and asymmetric voice

Support for a broad range of popular voice codec

Universal Plug-in-Play (UPnP)

2 FXS ports (RJ11) w/up to 2 SIP account profiles

T.38 Fax

HTTP/HTTPS(pending)/Telnet/TFTP Provisioning


IP connectivity for any phone and fax

Web management for easy configuration and installation

Offers traditional and advanced telephony features

Portable and compact for use at home or on the road

Quick Info


  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year

Customer Reviews of the Grandstream HT502

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  • Anonymous
  • 3/3/2014 9:40:52 PM
  • Tech Level: High
  • Ownership: more than 1 year
  • Verified Owner

5 out of 5 eggsWorks well

Pros: Has a wide variety of features. Supports many common configurations and scenarios that you would want. Extremely reliable and stable.

Cons: None found after more than a year of use.

Other Thoughts: At the price point of this device, have been shocked at just how well (and how consistently) this unit works.

NOTE: this device expects to NAT anything "behind it" (ie: devices plugged into "it's" LAN side). Thus, you must use the WAN port. If you are using it behind your firewall, simply enable the management services/ports on the WAN port to control it. Basically it can act as a simple router for those who may need that functionality.

2 out of 2 people found this review helpful. Did you? Yes No

  • ann r.
  • 3/29/2012 11:47:33 AM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year

5 out of 5 eggsGreat VoIP ATA adapter

Pros: Works, Period. I tried a Linksys ATA adapter and had trouble with it from day one. The port that the phone plugged into was dead. Poor quality control on Linksys end. The Grandstream HT502 was recommended to me by my VoIP/SIP provider, Vitelity. The settings were posted on their support site and worked perfect on this device. Has run a few months with never having to reboot the device.

Cons: Had to plug the Ethernet cable from my router into the WAN port on the Grandstream instead of LAN port. Not sure why and it was not described in the manual, but once connected to WAN, it works fine.

Other Thoughts: This will also work on rotary dial phones. Many configuration options if you are interested. You will need to specify a dialing string if you don't want to dial area code in front of local calls.

3 out of 3 people found this review helpful. Did you? Yes No

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Item#: 9SIA1EA0CJ2560
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