Troubleshooting Your Phone; General Troubleshooting - Cisco 7975G Software Manual

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
You cannot hear a dial
tone or complete a call
The Settings button is
unresponsive
The softkey that you
want to use does not
appear
Barge fails and results
in a fast busy tone
You are disconnected
from a call that you
joined using Barge
CallBack fails
Cisco Unified IP Phone User Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP)
Explanation
One or more of these factors may 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.
Your system administrator may have disabled
One or more of these factors may 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.
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 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.
The other party may have call forwarding enabled.
on your phone.
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