Grandstream HT812

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With the Grandstream HT812 ATA Adapter you can transform up to 2 analog telephones into IP phones. The HT812 is an advanced 2-port analog telephone adapter (ATA) with 2 FXS ports and an integrated Gigabit NAT router.

Built upon Grandstream’s market-leading SIP ATA/gateway technology with millions of units successfully deployed worldwide, this powerful ATA features exceptional voice quality in various application environments, strong encryption with unique security certificate per unit, automated provisioning for volume deployment and device management, and outstanding network performance for home and office use.

• Send and receive calls from the conventional telephone network or free over the Internet without having to change the telephone.
• It allows the connection of analog (conventional) telephones with or without cable and converts them into VOIP.

• Two (2) RJ11 FXS ports
• Two (2) 10/100/1000Mbps RJ45 ports
• LED Indicators
• Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference
• G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.723.1, G.729A/B, G.726, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation
• T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through
• 3 REN, up to 1km on 24AWG line
• Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
• Input: 100-240VAC, 50-60Hz
• Output: 12V/0.5A
• 28.5 x 130 x 90 mm (H x W x D)
• 353.33g