Grandstream - HT503 - Combo 1FXO and 1FXS ATA

Product Overview

The HT503 is an analog telephone adapter featuring 1 analog telephone FXS port and 1 PSTN line FXO port. 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. The 1 FXS port allows for extension of a VoIP service to 1 analog phone. In addition to being SIP compliant, the product features support for up to 2 SIP account profiles, excellent voice quality and advanced telephony features

Grandstream HandyTone HT-503 Key Features:

• 1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with power-outage life line support
• Up to 2 SIP account profiles, SIP over TCP/TLS, SRTP
• Dual 10/100 Mbps network ports (RJ45) with integrated high performance NAT router
• Status LED for power, telephone, PSTN line, network, and message waiting indication
• Advanced telephony features
• Comprehensive voice codecs
• Secure and automated provisioning using HTTP/HTTPS/Telnet/TFTP
• Symmetric and asymmetric voice codec/RTP in any call sessions
• T.38 Fax
• SIP over TCP/TLS
• IP connectivity for any phone and fax
• Hop-on/Hop-off calling
• Web management for easy configuration and installation
• Offers traditional and advanced telephony features
• Portable and compact for use at home or on the road

Grandstream HandyTone HT-503 Technical Specification

Telephone Interfaces

• 1 FXS port (RJ11)
• 1 FXO PTSN line port (RJ11) with lifeline support

Network Interfaces

• Two 10M/100Mbps ports (RJ-45) integrated NAT router and auto-detection and support for either straight through or crossover cables

LED Indicators

• Power, WAN, LAN, PHONE1 and LINE

Telephony Features

• Caller ID display or block
• Call waiting with caller ID
• Flash, blind or attend call transfer
• Hold
• Call forward
• Do not disturb
• 3-way conferenceing

Voice Codec

• G.711 Annex I (PLC)
• Annex II (VAD/CNG format)
• G.723.1A
• G.729A/B/E
• G.726-40/32/24/16
• iLBC

IP Signalling

• SIP (RFC 3261)
• SIP over TCP/TLS
• Up to 2 SIP account profiles
• Symetric and Asymetric RTP/codec in any call sesions

DTMF Method

• RFC2833
• SIP INFO

Universal Power Supply

• Output: 12VDC, 0.5A
• Input: 100-240 VAC, 50-60 Hz

Size and Weight

• Laying Flat: 25mm x 115mm x 75mm (H x W x D)
• Standing up: 115mm x 25mm x 75mm (H x W x D)

Caller ID

• REN3: Up to 150ft on 24 AWG line