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Cisco Wireless IP Phone 7920 Administration Guide for Cisco CallManager Release 3.3 or Later
OL-3930-02
Chapter 9 Troubleshooting the Cisco Wireless IP Phone 7920
General Troubleshooting Information
Phone does not ring To see if the phone is set to ring, choose Menu > Profiles >
Incoming Call Alert, and check that it is set to On.
To see if a ring tone has been set for the phone, choose Menu >
Phone Settings > Ring tones. If none is set, add a ring tone for
the phone.
To see if the speaker is functioning properly, adjust the ring
volume settings to the highest level. Enable keypad tones or call
the phone to check the speaker.
One-way audio on phone Check that the speaker is functioning properly. Adjust the
speaker volume setting and call the phone to check the speaker.
Check that ARP caching has been set on the AP. See “Wireless
Network and Access Point Configuration” section on page 3-3.
Delays when roaming from one
location to another
If Cisco Catalyst 4500 series switches are being used as the
main Layer 3 switches in the network, ensure that the
supervisor blades are a minimum SUP2+ or SUP 3 version. The
Cisco Wireless IP Phone 7920 (or any wireless client)
experiences roaming delays when an earlier version (SUP 1 or
SUP2) blade is used.
Phone is locked If you press a key and see the message, “KeyLocked,” the
keypad is temporarily locked. Press and hold the pound (#) key
to unlock the keypad without a password. When prompted with
the message, “Keylock off?” press OK to unlock the keypad.
When powering on the phone, if you are prompted to enter a
password, try entering the default password, 12345 and
pressing OK. If this password unlocks the phone, the phone
associates with the AP.
If these options do not unlock the phone, you must call Cisco
Technical Assistance Center (TAC) to have the phone unlocked.
Note When TAC uses the master password to unlock a phone,
all configuration is lost including the phone book
entries.
Table 9-1 Cisco Wireless IP Phone Troubleshooting (continued)
Summary Explanation