- 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

GSHT503