You are not connected to Extension Mobility service.
The system requires a Client Matter Code (CMC) or Forced Authorization Code (FAC) after dialing a number. (SCCP phones only.)
Your phone has time-of-day restrictions that prevent you from using some features during certain hours of the day.
Try the following:
Log into the Extension Mobility service.
Enter a CMC or FAC after dialing a number. (SCCP phones only.)
Change the time-of-day restrictions that prevent you from using some features during certain hours of the day. For more information, contact your system administrator.
The softkey that you want to use does not appear.
One or more of the following factors might apply:
There are additional softkeys to display.
The state of the line determines the phone softkeys.
Your phone is not configured to support the feature associated with that softkey.
Use one of these options:
Press More to reveal additional softkeys.
Change the line state (for example, go off-hook or have a connected call).
Contact your system administrator to request access to the feature.
Cannot Barge Call and Hear Fast Busy
Barge fails and results in a fast busy tone.
You cannot barge an encrypted call if the phone you are using is not configured for encryption. When your barge attempt fails for this reason, your phone plays a fast busy tone.
Call Disconnects After Barge
You are disconnected from a call that you joined using Barge.
You are disconnected from a call that you joined using Barge if the call is put on hold, transferred, or turned into a conference call.
Barge into the call again.
Cannot Use CallBack
The other party might have Call Forward enabled.
Call Forward All Error Message
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).
Contact your system administrator for details.
The phone screen appears blank and the Display button is not lit.
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.
Security Error Message
Your phone displays Security Error.
Your phone firmware has identified an internal error.
If the message persists, contact your system administrator.
Phone Troubleshooting Data
Your system administrator might ask you to access administration data on your phone for troubleshooting purposes.
If you are asked to...
Access network configuration data
Press , choose Settings > Network Configuration and select the network configuration item that you want to view.
Access status data
Press , choose Settings > Status and select the status item that you want to view.
Access phone model information
Press and choose Settings > Model Information.
Access phone call and voice quality information
Press and choose Settings > Status > Call Statistics.
Quality Reporting Tool
Your system administrator may temporarily configure your phone with the Quality Reporting Tool (QRT) to troubleshoot performance problems. Press QRT to submit information to your system administrator. Depending on the configuration, use the QRT to:
Immediately report an audio problem on a current call
Select a general problem from a list of categories and choose reason codes