NTP SERVER
GVR could provide other devices with NTP service. Tick "Enable NTP Server". See Figure 66 below.
Figure 66: GVR3550 System Setting Page – NTP Server
MAINTENANCE
Users could make operations like Upgrade, Import &Export and Troubleshooting.
UPGRADE
GVR supports upgrade via TFTP / HTTP / HTTPS and Manual Upload.
Figure 67: GVR3550 Update – Via HTTP
Grandstream Networks, Inc.
GVR3550 User Manual
Page 83 of 120
Firmware Version 1.0.0.65
Last Updated: 10/2014