HT503
HT503
HT503
HT503
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HT503
HT503
HT503
HT503

HT503

A hybrid ATA with FXS & FXO ports

The HT503 is an analog telephone adapter featuring 1 analog telephone FXS port and 1 PSTN line FXO port in order to offer backup lifeline support using a PSTN line. 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.

Features

  • 2 Lines

    2 Lines

    Supports 2 SIP profiles through 1 FXS anf 1 FXO

  • Security

    Security

    TLS and SRTP security encryption technology to protect calls and accounts

  • Automated Provisioning

    Automated Provisioning

    Automated provisioning options include TR-069 and XML config files

  • Audio Conferencing

    Audio Conferencing

    Supports 3-way voice conferencing

  • Failover SIP server

    Failover SIP server

    Failover SIP server automatically switches to secondary server if main server loses connection

  • Fax-over-IP

    Fax-over-IP

    Supports T.38 Fax for creating Fax-over-IP

  • Caller ID

    Caller ID

    Supports a wide range of caller ID formats

  • Zero Configuration

    Zero Configuration

    Use with Grandstream’s UCM series of IP PBXs for Zero Configruartion provisioning

  • Call Transfer

    Call Transfer

    Supports advanced telephony features, including call transfer, call forward, callwaiting, do not disturb, message waiting indication, multi-language promtps, flexible dial plan and more

Technical Specification

Telephone Interfaces
1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with lifeline support
Network Interfaces
Two (2) 10/100Mbps ports (RJ45) with integrated NAT router and auto-detection
and support for either straight through or crossover cables
LED Indicators
Power,WAN, LAN, PHONE and LINE
Factory Reset Button
Yes
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.723.1A, G.729A/B/E, G.728, G.726-40/32/24/16, iLBC
Voice over Packet Capabilities
Voice Activity Detection (VAD) with comfort noise generation (CNG) and packet loss concealment (PLC), dyanmic jitter buffer, G.168 compliant line echo cancellation
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
DHCP Serve/Client NAT Router
Yes, can operate in NAT router or switched mode
Network Protocols
TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN
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)
Compliance
FCC, CE, EN55022, EN55024 and FCC part 15 Class B, UL