9-3
Cisco Unified IP Video Phone 7985G Administration Guide
OL-8726-02
Chapter 9 Troubleshooting and Maintenance
Resolving Startup Problems
2.
Verify that the phone is receiving power:
–
Verify that the electrical outlet is functional.
–
If you are using inline power, use the external power supply instead.
–
If you are using the external power supply, switch with a unit that you
know to be functional.
–
If you are using in-line power, verify that you are connected to an IEEE
802af supported switch. Cisco in-line power is not supported on the
7985G.
3.
If the phone still does not start up properly, power up the phone with the
handset off hook. When the phone is powered up in this way, it attempts to
launch a backup software image.
4.
If the phone still does not start up properly, perform a factory reset of the
phone. For instructions, see the
“Performing a Factory Reset” section on
page 9-14
.
If, after you attempt these solutions, the LCD screen on the Cisco Unified IP
Video Phone does not display any characters after at least 5 minutes, contact a
Cisco technical support representative for additional assistance.
Symptom: The Cisco Unified IP Video Phone Does Not Register
with Cisco Unified CallManager
If the phone proceeds past the first stage of the startup process (LED buttons
flashing on and off) but continues to cycle through the messages that display on
the LCD screen, this means that the phone is not starting up properly. The phone
cannot successfully start up unless it is connected to the Ethernet network and it
has registered with a Cisco Unified CallManager server.
These sections can assist you in determining the reason that the phone cannot start
up properly:
•
Registering the Phone with Cisco Unified CallManager, page 9-4
•
Checking Network Connectivity, page 9-4
•
Verifying TFTP Server Settings, page 9-4
•
Verifying IP Addressing and Routing, page 9-5
•
Verifying DNS Settings, page 9-6
