Grandstream phone not updating time
You can manage Time Zone settings from the 3CX Management Console in the “Settings-The default value for “Time Server” is “org”.This is a public FQDN, and therefore your phone will need access to “org” for it to be able to retrieve the correct base time. You can change this value to some other public FQDN or IP Address, if the phone has access to the internet for the NTP protocol.The GXP1450 is a two-line device that is part of a new line of Office IP phones from Grandstream.In our experience we found this device to be reliable, full featured, easy to configure, and affordable.3CX Phone System includes functionality to easily set the Time Zone and DST (Daylight Savings Time) parameters on phones via provisioning.
These instructions are also based on using the GXP1450 in its factory default configuration, which obtains a dynamic IP address automatically from your router using DHCP.We recommend that you read each step through in its entirety before performing the action indicated in the step.Once you have powered up your device plus wait 60 seconds for GXP1450 to fully boot up.You can find the firmware version your phone is currently running by pressing the "Menu" button (the center of the navigation wheel), select "Status" then scroll down until you see 'Prog: firmware version'.If you are running a version prior to 22.214.171.124, please upgrade your phone's software before proceeding (refer to your Grandstream Administrator's Guide).
You will need an functioning web-server server in order to complete the firmware update.