display extension and display name setting on yeastar s300

I am using yeaster S300. the problem is extensions of S300 is saved with a specific Caller ID Name. but whenever i calling to some other extensions of S300 nor my name is shown to the dialed extension. also when some other extension calling me then other extension Caller ID Name not shown to me.

Extensions are registered on Fanvil X3S/X3SP.

Please Help..


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