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Clearance items can be either customer returns in "like-new" condition (Open Box Items), unused inventory stock rotation, or manufacturer refurbished. All items are tested, quality assured, fully functional, and carry a full 90 day manufacturer's warranty.
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
Multi-language voice prompts
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
AC power supply included
Grandstream
HT503 - Overview
The HandyTone 503 is the
next generation of powerful, affordable, high
quality and manageable IP telephony ATA/IAD for residential users
and
road-warriors. Its compact size, excellent voice quality, packed
feature functionality and best-in-class price-performance point enable
consumers to maximize the power of IP voice and data
connectivity. The HandyTone 503 is based on SIP standard and
interoperable with most 3rd party SIP compliant devices and software.
It features 1 FXS telephone port, 1 FXO PSTN line port, dual
10M/100Mbps network ports, port status and message waiting LED, and a
base stand for vertical positioning.
G.711(a/u-law),
G.723.1,
G.729A/B/E, G.726-40/32/24/16 and iLBC, T.38 fax
Remote
Configuration
HTTP
/ HTTPS / Telnet /
TFTP Provisioning
Technical
Specifications
Telephone
Interfaces
1
FXS telephone port (
RJ11), 1 fxo PSTN line port (RJ11) with lifeline support
Network
Interfaces
Two
(2) 10M/100 Mbps ports
(RJ-45) with integrated NAT router
LED
Indicators
Power,
WAN, LAN, PHONE and
LINE
Reset
Button
Factory
reset button
Telephony
Features
caller
ID display or
block, call waiting wither caller ID, flash, blind or attended call
transfer, hold, call forward, do not disturb, 3-way conferencing
Voice
Codec
G.711
Annex I (PLC) and
Annex II (VAD/CNG format), G.723.1A, G.729A/B/E, 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), Dynamic Jitter Buffer, G.168 compliant Line Echo Cancellation
Fax
over IP
T.38
compliant Group 3 Fax
Relay up to 14.4kpbs, Fax Datapump V.17, V.19, V.27ter, V.29 for T.38
fax relay
