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Cisco Unified IP Phone User Guide for Cisco Unified Communications Manager 8.6 (SCCP and SIP) 1
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 these factors may apply:
• Y
ou 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)
• Y
our phone has time-of-day restrictions that prevent you from using
some features during certain hours of the day.
The Settings button is
unrespon
sive
Your system administrator may have disabled on your phone.
The softkey that you
wa
nt to use does not
appear
One or more of these factors may apply:
• Y
ou must press more to reveal additional softkeys.
• Y
ou must change the line state (for example, go off-hook or have a
connected call).
• Y
our 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 ca
ll 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 fa
ils The other party may have call forwarding enabled.