Cisco 8821 User Manual page 88

General Troubleshooting
Symptom
The main screen is not active
The Settings menu is unresponsive
Conference fails
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
Call back fails
Cisco Wireless IP Phone 8821 and 8821EX User Guide
78
Explanation
One of these messages appears on the status line:
• Network busy: Not enough available bandwidth exists in
wireless network to complete this call. Try again later.
• Leaving service area: Phone is out of range of its
associated access point and wireless network.
• Locating network services: Phone is searching for
a wireless network access point.
• Authentication failed: Authentication server did
not accept the security credentials.
• Configuring IP: Phone is waiting for DHCP to assign
an IP address.
Your administrator might have disabled access to the Settings app
on your phone.
Conference requires multiple selected calls. Be sure that you have
selected at least one call in addition to the active call, which is
selected automatically. Conference also requires the selected calls
to be on the same line. If necessary, transfer calls to one line before
joining them.
One or more of the following factors might apply:
• You must press More
• You must change the line state (for example, place a call or
have a connected call).
• Your phone is not configured to support the feature associated
with that softkey.
One or more of the following factors might apply:
• 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 cannot barge a call on another Cisco Wireless IP Phone.
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.
The other party might have call forwarding enabled.
Troubleshooting
to reveal additional functions.