5505 Guest IP Phone Administration Guide
Re-Registering the 5505 Guest IP Phone
The 5505 Guest IP Phone will require
To
1.On the 5505 base station, press down the Volume Up/Down key on the base station.
2.Then release the Volume Down (
3.While the Volume Up key is pressed, type 734 (REG) to start the
The Line in Use keys start flashing slowly waiting for the DN number and Registration PIN.
4.Enter the DN and registration PIN as DN#PIN#.
5.Press the Speaker key. 
If an invalid DN or invalid PIN is entered, the cordless handset will display DN followed by !REG or ! for DNs, indicating that the phone is not registered. Try the registration again. See “Maintenance and Troubleshooting” on page 39 if the procedure is unsuccessful.
After successful registration, the screen displays the Room Name/Number.
6.At any time, to exit from the 
on the 5505 base station.
Firmware Upgrades
The 5505 IP Phone checks its tftp server every day at 3 a.m. If there is new firmware, the phone performs an upgrade.
If the phone is on a call at 3 am, it waits until it is idle before doing the firmware check.
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