The 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. This ATA 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.1 FXS analog telephone ports (RJ11), 1 PSTN line FXO port, dual 10/100 Mbps ports with integrated NAT routerAdvanced telephony features include caller ID, call waiting3-way voice conference, transfer, forward, do not disturb, message indicator, multi-language voice prompts, T.38 fax, flexible dial plan and moreSupports up to 2 SIP accountsStatus LED for power, telephone and network ports, and message waiting indication..
The HT814 delivers powerful VoIP technology and routing capabilities to home and office environments, and allows users to successfully connect their analog devices to a manageable, robustnetwork. Built using Grandstream’s market-leading SIP ATA/gateway technology, with millions of units successfully deployed worldwide, this powerful ATA features exceptional voice quality in various applications and environments. The HT814 comes with 4 easy-to-use FXS ports, an integrated Gigabit NAT router, state-of-the-art encryption with a unique security certificate per unit, automated provisioning for volume deployment and device management and outstanding network performance.Supports 2 SIP profiles through 4 FXS ports and dual Gigabit portsIncludes a built-in NAT router which can handle routing speeds up to 100MBpsTLS and SRTP security encryption technology to protect calls and accountsAutomated provisioning options include TR-069 and XML config filesSupports 3-way voice conferencingFailover SIP server automatically switches to secondary server if main server loses connectionSupports T.38 Fax for creating Fax-over-IPSupports a wide range of caller ID formatsUse with Grandstream’s UCM series of IP PBXs for Zero Configuration provisioning..