Grandstream Networks HT-881 SIP ATA 8-port FXO Gateway

Grandstream Networks HT-881 SIP ATA 8-port FXO Gateway The Grandstream HT881 is an ideal VoIP gateway for businesses of all sizes, providing FXO and FXS ports for PSTN line calling, advanced telephony features, automated provisioning, and excellent voice quality. It features 8 RJ11 FXO ports and 1 RJ11 FXS port, supporting caller ID display/block, call waiting, flash, blind/attended transfer, forward, hold, do not disturb, and 3-way conference. Features: Supports 3 SIP profiles through 1 FXS port and 4/8 FXO ports High-performance NAT router Lifeline support (FXS port will be hard-relayed to FXO port) in case of a power outage 3-way voice conferencing per port Automated & secure provisioning options using TR069 Supports T.38 Fax for reliable Fax-over-IP Failover SIP server automatically switches to secondary server if the main server loses connection Strong AES encryption with security certificate per unit