The Grandstream SIP-ATA HandyTone HT881 is a powerful VoIP gateway specifically designed for integrating analog telephone lines into modern IP telephony systems. With one FXS port and eight FXO ports, this device allows for flexible connectivity to existing telephone infrastructures. It supports multiple VoIP protocols, including SIP, SRTP, and SIP over TLS, ensuring secure and reliable communication. The HT881 is not just a gateway; it also functions as a high-performance NAT router, providing a stable internet connection for VoIP applications. The ability to manage up to three SIP profiles makes it ideal for businesses that require multiple telephone lines. Additionally, the device features lifeline support, which ensures uninterrupted communication in the event of a power outage. With automated provisioning options and strong AES encryption, the Grandstream HT881 is both user-friendly and secure.

• Supports up to 3 SIP profiles via 1 FXS port and 8 FXO ports
• High-performance NAT router for stable internet connections
• Lifeline support for uninterrupted communication during power outages
• Automated provisioning with TR069 for easy installation
• Strong AES encryption with a security certificate per unit.