user manual
Table Of Contents
- Cisco Unified IP Phone 7970 Series Phone Guide for Cisco Unified Communications Manager 6.1 (SCCP and SIP)
- Quick Reference
- Getting Started
- Connecting Your Phone
- An Overview of Your Phone
- Basic Call Handling
- Placing a Call-Basic Options
- Placing a Call-Additional Options
- Answering a Call
- Ending a Call
- Using Hold and Resume
- Using Mute
- Switching Between Multiple Calls
- Switching an In-Progress Call to Another Phone
- Viewing Multiple Calls
- Transferring Calls
- Sending a Call to a Voice Message System
- Forwarding Calls to Another Number
- Using Do Not Disturb
- Making Conference Calls
- Placing or Receiving Intercom Calls
- Advanced Call Handling
- Speed Dialing
- Picking Up a Redirected Call on Your Phone
- Storing and Retrieving Parked Calls
- Logging Out of Hunt Groups
- Using a Shared Line
- Using BLF to Determine a Line State
- Making and Receiving Secure Calls
- Tracing Suspicious Calls
- Prioritizing Critical Calls
- Using Cisco Extension Mobility
- Managing Business Calls Using a Single Phone Number
- Using a Handset, Headset, and Speakerphone
- Changing Phone Settings
- Using Call Logs and Directories
- Accessing Voice Messages
- Using the User Options Web Pages
- Accessing Your User Options Web Pages
- Configuring Features and Services on the Web
- Understanding Additional Configuration Options
- Troubleshooting Your Phone
- Cisco One-Year Limited Hardware Warranty Terms
- Index

Cisco Unified IP Phone 7970 Series for Cisco Unified Communications Manager 6.1 69
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 Settings button is
unresponsive
Your system administrator might have disabled on your phone.
The phone screen
appears blank
The touchscreen has gone into sleep mode to save power after a period of
inactivity. Wake the touchscreen by pressing it, by lifting the handset, or by
pressing any button, such as
. See Cleaning and Maintaining
the Touchscreen, page 12.
The phone screen does
not illuminate under
any circumstances
You might have disabled touchscreen illumination on your phone. Contact
your system administrator to determine if this feature is available to you.
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.