The Grandstream‘s HandyTone 503 or HT503 enables an integrated hybrid deployment between PSTN and VoIP environments. Users can utilize “hop-on and hop-off” calling through its FXO and FXS port that enables remote call origination and termination to and from the PSTN line. HandyTone 503 features 1 analog telephone FXS port and 1 PSTN line FXO port. Users can utilize the device for extension of a VoIP service to 1 analog phone with the FXS port. In addition to being SIP compliant, this product features support for up to 2 SIP account profiles, excellent voice quality, and advanced telephony features.
Network integration between PSTN and POTS has never been so easy. The HT503 is a hybrid analog telephone adapter and VoIP router that enables the user to create an easily integrated hybrid solution with backup lifeline support.
Description
Features
- 1 FXS analog telephone ports (RJ11), 1 PSTN line FXO port, dual 10/100 Mbps ports with integrated NAT router
- Advanced telephony features include caller ID, call waiting
- 3-way voice conference, transfer, forward, do not disturb, message indicator, multi-language voice prompts, T.38 fax, flexible dial plan, and more
- Supports up to 2 SIP accounts
- Failover SIP server automatically switches to secondary server if the main server loses connection
- Status LED for power, telephone, and network ports, and message waiting for an indication
- TLS and SRTP security encryption technology to protect calls and accounts
- Automated provisioning options include TR-069 and XML config files
- Use with Grandstream’s UCM series of IP PBXs for Zero Configruartion provisioning
- Supports advanced telephony features, including call transfer, call forward, callwaiting, do not disturb, message waiting indication, multi-language promtps, flexible dial plan and more





GXV3610 v2 Series
A weatherproof, infrared IP camera that enables users to monitor and secure important low-light outdoor environments. The GXV3610 v2 comes with a 3.6mm lens for monitoring wide angles at close proximity settings, such as building entrances, outdoor warehouses, parking garages and outdoor reception areas.
...
...
GXW4004/4008
Constructing a high-end and interoperable communications network with your analog endpoints is easier than ever. The GXW4004/4008 is ideal for small to medium business that are looking to integrate existing PSTN telephony systems into an IP telephony solution.
Product datasheets
For Pricing Click...
Product datasheets
For Pricing Click...
HT502
The HT502 analog telephone adapter (ATA) allows users to create a high-quality and manageable IP telephony solution for home or office applications. The product features 2 FXS ports, an integrated NAT router and dual 10/100Mbps Ethernet WAN and LAN ports to enable a shared broadband connection between...
GVC3200
A video conferencing solution for an organization looking to use powerful meeting and collaboration features through a versatile and flexible system. The GVC3200 is a powerful addition to any communications network. Increase meeting collaboration by engaging face-to-face, regardless of location.
Product...
Product...
GXV3674 v2 Series
A versatile selection for an outdoor setting where weather and light conditions are a concern, the GXV3674 v2 creates an easy to deploy, flexible security solution. The GXV3674 v2 also comes equipped with IR and a variable focus lens, allowing users to customize the device best to fit their monitoring...
