5505 Guest IP Phone Administration Guide
Incorrect PIN is
displayed on the
handset.
PIN is not correct. Re-enter the wireless PIN in the User Device
Configuration form and try to pair again.
Register handset is
on the display.
The handset is not paired with the
base.
Pair the handset with the base. See “Pairing the
5505 Cordless Handsets” on page 12.
Registration failed
is displayed on the
handset.
Base is powered off.
Base is not in pairing mode.
Handset is out of range.
The handset variant (NA or UK)
doesn’t match the base.
Turn on the base.
Put the base in pairing mode. See “Pairing the 5505
Cordless Handsets” on page 12.
Place the handset closer to the base.
Ensure that the handset variant matches the base.
Handset does not
get dial tone.
The handset is not turned on.
If the handset is turned on
Press the end call key for approximately 5
seconds or place the handset in the base.
Charge or replace the batteries.
A handset is in use.
The phone may be stuck booting up. See “Phone
State During Startup and First Registration” on
page 42 for its current state.
The handset does
not ring.
The ringer may be silenced. Press and hold the * key to turn the ringer
on.
DHCP failures -
Waiting for DHCP
is displayed on the
handset for more
than 5 minutes.
Unable to obtain an IP address or
incorrect DHCP settings on the
server.
Check the network connectivity.
Reconfigure the DHCP settings.
Table 2: Phone State During Startup and First Registration
LED Behavior Mode Solution
Speakerphone flashing for more
than 5 minutes
LLDP & IP provisioning Check the network connectivity.
Reconfigure the DHCP settings.
Mute flashing for more than 5
minutes
Upgrading firmware - l2 Boot, main
and recovery
Re-install the firmware on MCD
and reboot the 5505 phone.
Messages flashing for more than 5
minutes
Main startup and CVM firmware
upagrade
Reboot the phone.
No LED flashing Successful boot up
Table 1: 5505 IP Phone Troubleshooting (continued)
Problem/Message Cause Solution
Page 2 of 2
