Why does my phone display the “no service” message, Why does my phone display "bad encrypted config – AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN User Manual

Why does my phone display the “no service” message, Why does my phone display "bad encrypted config | AASTRA 6700i series, 9143, 9480i, 9480i CT SIP Administrator Guide EN User Manual | Page 723 / 1049