Cisco Systems 7975G Manual De Usuario

Your system administrator may ask you to access administration data on your phone for 
troubleshooting purposes.

The phone shows an 
error message when 
you attempt to set up 
Call Forward All

Your phone may reject your attempt to set up Call Forward All directly on 
the phone if the target number that you enter would create a Call Forward 
All loop or would exceed the maximum number of links permitted in a Call 
Forward All chain (also known as a maximum hop count). Ask your system 
administrator for details.

The phone screen does 
not illuminate under 
any circumstances

You may have disabled phone screen illumination on your phone. Contact 
your system administrator to determine if this feature is available to you.

The phone screen 
appears blank and the 
Display button is lit

The phone screen appears blank and the Display button flashes. The phone 
is powered down (sleeping) to save energy. The phone will power up (wake) 
when the system sends the wake up message. You cannot wake the phone 
before its scheduled power up time. To wake up the phone plug in the 
power adapter. Unplug-plug would not wake up the phone while sleeping.

Your phone displays 
“Security Error”.

Your phone firmware has identified an internal error. To wake up the 
phone plug in the power adapter. Unplug-plug would not wake up the 
phone while sleeping. If the message persists, contact your system 
administrator.

Access network 
configuration data

Choose 

 > Network Configuration and select the network 

configuration item that you want to view.

Access status data

Choose 

 > Status and select the status item that you want to view. 

Access phone model 
information

Choose 

 > Model Information.

Access phone call and 
voice quality 
information 

Choose 

 > Status > Call Statistics.

Access VPN 
performance 
information related to 
the data transmitted 
and received

Choose 

Status > Network Statistics.