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5055 SIP Phone User Guide (Rev. A)
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Upgrading the firmware using the SIP Phone Menu Interface
You upgrade the SIP Phone by downloading the new firmware from the appropriate TFTP
server (the TFTP server is programmed with the Network Configuration).
CAUTION: During this procedure, DO NOT remove power from the SIP Phone while
firmware is downloading or the phone is rebooting. This may result in severe damage
to your SIP Phone.
1. To restart the phone, press the Menu, ∗ and 0 keys in sequence.
2. When the display shows “Booting…”, press and hold the 2 key on the keypad. This
upgrades the boot firmware of the SIP Phone.
3. When “UPGRADE FIRMWARE?” appears, release the key and press the YES softkey.
4. The phone now gives you the option of using the displayed TFTP IP address (this IP
address is set in the Network Configuration Page), or entering one of your own.
5. Press the ▼ key. The firmware starts downloading.
6. When the new firmware has finished downloading, the SIP Phone reboots. This process
may take a minute or two. It’s complete when the display shows a time and date on the
top line of the display (default display). In some cases, upgrade of the boot firmware will
automatically trigger upgrade of the Main firmware. If you need to force the upgrade of
the Main firmware, press the Menu, ∗ and 0 keys in sequence, then hold the 1 key (the
phone then requires you to select the TFTP IP address, and press the
▼ key). This
process may take a minute or two, and is complete when the display shows a time and
date on the top line of the display (default display).
7. In some cases it may be necessary to reset the settings of the SIP Phone to factory
defaults (note: this procedure will erase all your settings then replace them by the factory
defaults). To do this
• Press the Menu key.
• Press * on the keypad.
• Press # on the keypad.
• Press and hold the 3 key on the keypad until “USE FACTORY DEFAULTS?” is
displayed.
• Press the YES softkey. The settings are reset, and the phone reboots.
When the time and date are displayed, you must reprogram the SIP Phone or reload a
saved configuration file (see Changing Passwords, Setting Up User Profiles,
Creating/Modifying a SIP Account and Modifying the Network Configuration in this
section). Saved configuration files do not restore passwords, so you will have to re-enter
your passwords manually.
Additional Settings
Configuration Files
The 5055 SIP Phone supports configuration files for automatic programming of the phones.
There are two types of configuration files:
• Generic: a generic configuration file applies the settings defined in it to all the SIP
Phones.