Grandstream Networks HT812 VoIP Telephone Adapter

73.76 GBP

Two analog phones connect to the HT‑812 ATA, which bridges them to VoIP with dual Gigabit Ethernet ports and an integrated NAT router. It supports iLBC, G.711, G.729A/B, OPUS codecs, offers call waiting, caller ID, 3‑way conference, and web‑based management via HTTPS.

Brand: Grandstream
Model: HT-812
MPN: HT-812
SKU: HT-812
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73.76 GBP 73.76 EUR
02-04-2026 09:45:54
Call waiting Yes
Caller ID Yes
Certification FCC/CE/RCM, K.21
Conference call Yes
Ethernet LAN ports 2
Harmonized System HS code 85177900
I/O ports 2 x FXS, 2 x RJ-45
LED indicators Yes
Management protocols Telnet
Operating relative humidity 10 - 90 %
Output current 0.5 A
Output voltage 12 V
Power requirements 12V/0.5A
Quality of Service support Yes
Reset button Yes
Security algorithms AES,HTTPS
Voice codecs iLBC,G.711,G.723.1,G.726,G.729A,G.729B,OPUS
Web-based management Yes