Lock iconRectangle 1Rectangle 2 + Rectangle 2 CopyShapeRectangle 1

This Product Is DISCONTINUED and Not Available for Sale

If you absolutely, positively need this product, please reach out by phone or email. We may be able to locate old stock or refurbished stock by special request. This product is orderable on our site however if we are unable to locate stock to ship you, we'll need to refund your monies


2 FXS Port Bridge | Grandstream HT502

  • Sale
  • 78 CAD

Why BuyPhonesOnline.ca?

  • There are no unexpected duties, tariffs or cross border fees on our products.  All pricing is in Canadian dollars and shipped from Canada.
  • All products shipped from BuyPhonesOnline.ca come pre-configured and with configuration support; so that you can UNPACK, PLUG-IN, and DIAL.  
  Call Us: (877) 823-1465 .

HELIA Technology Report

Find advanced training videos and product reviews for all things phones at our YouTube channel. Find coupons for this BuyPhonesOnline.ca webstore and more. Visit and Subscribe youtube.com/HeliaCanada

The Grandstream HT502 - An easy-to-use 2 FXS port ATA

The HT502 is an analog telephone adapter (ATA) featuring 2 FXS ports that allows users to create a high-quality and managable IP telephony solution. The product’s inclusion of an integrated NAT router and dual 10/100Mbps Ethernet WAN and LAN ports enables a shared broadband connection between multiple Ethernet devices as well as the extension of VoIP services to analog phones.

  • Use with Grandstream’s UCM series of IP PBXs for Zero Configruartion provisioning
  • Failover SIP server automatically switches to secondary server if main server loses connection
  • Supports 2 SIP profiles through 2 FXS ports and single 10/100Mbps port
  • TLS and SRTP security encryption technology to protect calls and accounts
  • Supports T.38 Fax for creating Fax-over-IP
  • Supports a wide range of caller ID formats
  • Automated provisioning options include TR-069 and XML config files
  • Supports 3-way voice conferencing
  • Supports advanced telephony features, including call transfer, call forward, call-waiting, do not disturb, message waiting indication, multilanguage promtps, flexible dial plan and more www.grandstream.com


  • Telephone Interfaces Two (2) FXS port (RJ11)
  • Network Interfaces Two (2) 10/100Mbps ports (RJ45)
  • LED Indicators Power,WAN, LAN, PHONE 1 and PHONE 2
  • Factory Reset Button Yes

Voice, Fax, Modem

  • Telephony Features Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference
  • Voice Codecs G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729A/B/E, G.728, G.726-40/32/24/16, iLBC
  • Fax Over IP T.38 compliant Group 3 fax relay up to 14.4kbps, Fax datapump V.17, V.19, V.27ter, V.29 for T.38 fax relay
  • Short/Long Haul Ring Load REN 3: Up to 150 ft on 24 AWG lines
  • Caller ID Bellcore type 1 & 2, ETSI, BT, NTT and DTMF-based CID
  • Disconnect Methods Polarity Reversal/Wink


  • QoS Layer 2 (802.1Q VLAN/802.1p) and Layer 3 (ToS, Diffserv, MPLS)
  • DTMF Method RFC2833 and/or SIP INFO
  • Provisioning and Control UPnP, HTTP, HTTPS, TELNET, TFTP, TR069, secure and automated provisioning using AES encryption, syslog


  • Media SRTP
  • Control TLS/SIPS/HTTPS
  • Management Syslog support, telnet, remote management using web broswer


  • Universal Power Supply
    • Input: 100-240VAC, 50-60Hz
    • Output: 12V VDC, 0.5A
  • Environmental
    • Operational: 32° ~ 104°F or 0° ~ 40°C;
    • Storage: -10 ~ 130°F
    • Humidity: 10 - 90% non condensing
  • Dimensions 25mm x 115mm x 75mm (when laying flat)