The Grandstream HT812 2-Port Analog Telephone Adapter combines dual FXS ports and a built-in Gigabit NAT router, offering seamless integration for home or office VoIP applications. It features advanced security, automated provisioning, and failover SIP server support, ensuring reliable, high-quality IP communication.

• Dual FXS ports supporting two SIP profiles for flexible VoIP deployment

• Integrated Gigabit NAT router with routing speeds up to 100Mbps

• TLS and SRTP encryption for enhanced call and account security

• T.38 support for Fax-over-IP and compatibility with a variety of caller ID formats

• Failover SIP server ensures continuous connectivity with automatic server switching