Grandstream Networks HT812 VoIP telephone adapter

Grandstream Networks HT812. Voice codecs: iLBC, G.711, G.723.1, G.726, G.729A, G.729B, OPUS, Fax compatibility: T.38, Certification: FCC/CE/RCM, K.21. Supported network protocols: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, STUN, SIP…, Management protocols: Telnet. Security algorithms: AES, HTTPS. Output voltage: 12 V, Output current: 0.5 A. Dimensions (WxDxH): 130 x 90 x 28.5 mm, Weight: 353.33 g

Features
Voice codecs: iLBC, G.711, G.723.1, G.726, G.729A, G.729B, OPUS
Fax compatibility: T.38
Feature: Reset button
Feature: LED indicators
Certification: FCC/CE/RCM, K.21
Network
Feature: Web-based management
Feature: Quality of Service (QoS) support
Call management
Feature: Caller ID
Feature: Conference call
Feature: Call waiting
Protocols
Supported network protocols: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, STUN, SIP (RFC3261), SIP over TCP/TLS, SRTP, TR-069
Management protocols: Telnet
Security
Security algorithms: AES, HTTPS
Ports & interfaces
I/O ports: 2 x FXS, 2 x RJ-45
Ethernet LAN (RJ-45) ports: 2
Power
Output voltage: 12 V
Output current: 0.5 A
Logistics data
Harmonized System (HS) code: 85177900
Operational conditions
Operating temperature (T-T): 0 – 40 °C
Storage temperature (T-T): -10 – 60 °C
Operating relative humidity (H-H): 10 – 90%
Weight & dimensions
Dimensions (WxDxH): 130 x 90 x 28.5 mm
Weight: 353.33 g