Grandstream HT801 Single port Analog Telephone Adapter HDD capacity_4 TB This prevent nozzle jams and This prevent nozzle jams and yield smooth 3D models Sleek design and compact size fit nicely on any workspace Supports 1 SIP profile through a single FXS port and a single 10 100Mbps port TLS and SRTP security encryption technology to protect calls and accounts Automated provisioning options include TR 069 and XML config files Supports 3 way voice conferencing Failover SIP server automatically switches to secondary server if main server loses connection Supports T Grandstream HT801 Single port Analog Telephone Adapter