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Chapter 9 Troubleshooting the Cisco IP Phone Models 7905G and 7912G
Resolving Problems
9-4
Cisco IP Phone Models 7905G and 7912G Administrator Guide (SIP)
OL-4277-01
Symptom There is no dial tone on the phone.
Possible Cause No user ID was entered, or the UID parameter is set to 0 or a
period (.).
Recommended Action Verify the UID parameter value and enter the correct
user ID.
Symptom The phone plays an incorrect busy tone, call waiting tone, dial tone,
reorder tone, or ringback tone.
Possible Cause There is an incorrect setting for the BusyTone, CallWaitTone,
DialTone, DialTone2, RingBackTone, or ReorderTone parameter.
Recommended Action Verify that these parameters are set correctly for your
country. For more information, see the “BusyTone, CallWaitTone, DialTone,
DialTone2, and RingBackTone Parameter Details” section on page 8-28 or
the “ReorderTone Parameter Details” section on page 8-30.
Symptom Cisco IP Phone 7905G resets repeatedly after upgrading its firmware
image.
Possible Cause The phone cannot perform image authentication, but it has
upgraded to a .SBIN firmware image file instead of to a .ZUP image file. (A
.SBIN firmware image file requires that the phone be able to perform image
authentication.)
Recommended Action Upgrade the phone to a .ZUP image file. For more
information, see the “Upgradecode Parameter Detail” section on page 8-41.
Symptom The Cisco logo does not appear properly on the web page for a phone.
Possible Cause You are using Netscape version 4.78 or earlier.
Recommended Action When accessing a phones web page, use Netscape
release 6.0 or later, or use Internet Explorer.