Cisco Unified IP Phone 7906G and 7911G User Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
Troubleshooting Your Phone
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Troubleshooting Your Phone

Table Of Contents

Troubleshooting Your Phone

General Troubleshooting

Viewing Phone Administration Data

Using the Quality Reporting Tool


Troubleshooting Your Phone


This section provides troubleshooting information for your Cisco Unified IP Phone.

General Troubleshooting

This section provides information to help you troubleshoot general problems with your phone. For more information, see your system administrator.

Symptom
Explanation

You cannot hear a dial tone or complete a call

One or more of the following factors might apply:

You must log into the Extension Mobility service.

You must enter 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.

The softkey that you want to use does not appear

One or more of the following factors might apply:

You must press more to reveal additional softkeys.

You must change the line state (for example, go off-hook or have a connected call).

Your phone is not configured to support the feature associated with that softkey.

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.

You are disconnected from a call that you joined using Barge

You will be disconnected from a call that you have joined using Barge if the call is put on hold, transferred, or turned into a conference call.

CallBack fails

The other party might have call forwarding enabled.

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 appears blank and the Display button is not 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.


Viewing Phone Administration Data

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

If you are asked to...
Then...

Access network configuration data

Press and choose Settings > Network Configuration and select the network configuration item that you want to view.

Access status data

Press and 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.


Using the Quality Reporting Tool

Your system administrator may temporarily configure your phone with the Quality Reporting Tool (QRT) to troubleshoot performance problems. You can press QRT to submit information to your system administrator. Depending on 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