Grandstream HT802 2‑Port Analog Telephone Adapter (ATA)

Key Features:

• 2 × FXS RJ11 Ports: Connect two analog phones or fax machines to an IP‑based system.

• Dual SIP Profiles: Independently register each FXS port to a SIP account.

• VoIP Security: Supports TLS and SRTP encryption for secure signaling and media.

• Automated Provisioning: TR‑069 and XML config file support for remote deployment and management.

• Advanced Telephony: Caller ID, call waiting, flash, blind/attended transfer, call forward, hold, Do Not Disturb (DND), 3‑way voice conference.

• T.38 Fax‑Over‑IP: Supports Group 3 fax relay over IP with automatic fallback to G.711 for fax pass‑through.

• Failover SIP Server: Automatically switches to a secondary SIP server if the primary connection fails.

• LED Status Indicators: Power, Network, Phone1, Phone2 for easy visual status monitoring.

• Wide Codec Support: G.711, G.722, G.723.1, G.726, G.729A/B, iLBC, Opus with dynamic jitter buffer and advanced echo cancellation.

• Compact & Energy‑Efficient: Fanless design and small form factor for easy placement in home or office setups.

Hardware & Technical Specs:

• Telephone Interfaces: 2 × RJ11 FXS ports for analog phones/fax.

• Network Interface: 1 × 10/100 Mbps auto‑sensing RJ45.

• LED Indicators: POWER, INTERNET, PHONE1, PHONE2.

• Telephony Features: Caller ID display/block, call waiting, flash, blind/attended transfer, forward, hold, DND, 3‑way conferencing.

• Voice Codecs: G.711 (PLC/VAD/CNG), G.722, G.723.1, G.726‑32, G.729A/B, iLBC, Opus; jitter buffer; echo cancellation.

• Fax Protocol: T.38 Group 3 fax with fallback to G.711.

• SIP & Protocols: SIP (RFC 3261) signaling; UDP/TCP/TLS, RTP/RTCP, DHCP, DNS, HTTP/HTTPS, TR‑069.

• Power: External AC/DC adapter (100‑240 VAC to 5 VDC).

• Physical: Ultra‑compact form factor; fanless design.