GRANDSTREAM HT812 Analog Telephone Adapters User Guide
GRANDSTREAM HT812 Analog Telephone Adapters Specifications Telephone Interfaces: Two (2) RJ11 FXS ports for HT812 Four (4) RJ11 FXS ports for HT814 Network Interface: Two (2) 10/100/1000 Mbps Ethernet port (RJ45) Voice Codecs: SRTP Network Protocols: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, SIP,…