Grandstream 1-FXS 1-FXO Port Analog Telephone Adapter (Discontinued)

(Model # GS-HT503)

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1-FXS/1-FXO Port Analog Telephone Adapter.

GS-HT503 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

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