![background image](http://html.mh-extra.com/html/freund/fe-tel-48g/fe-tel-48g_admin-manual_2331931177.webp)
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Session Time Out
Over the Time out value, users need to login again.
8.26. Security->Advanced
Web Server Certificate:
To display or delete Certificate which is used
when IP phone is connected from any incoming HTTPs request.
Note: The default certificate could not be deleted.
Web Server Certificate
Uploa
d: To upload a certificate file which will be used as a server
certificate.
Client Certificate:
To display or delete Certificates which is used when
IP phone is connecting to any HTTPs server.