Features Page 115 of 910
IP Line Description, Installation and Maintenance
Postponed firmware
upgrade
IP Phone displays message that IP Phone is connecting to the
LTPS.
IP Phone cannot download firmware. It is allowed to proceed
with registration using old firmware.
At the completion of call (if download resources are available), IP
Phone displays message Upgrade F/W now?
IP Phone displays Yes and No softkeys to use to select choice.
If Yes is selected, firmware download begins. If no choice is
made, IP Phone proceeds with firmware download after timer
expiration.
If No is selected, IP Phone display returns to idle state. Off-hook
dialing, on-hook dialing, and external events such as an
incoming call imply a No response.
Unknown firmware ID for
known IT_TYPE
IP Phone displays message that IP Phone is connecting to the
LTPS .
No firmware upgrade is performed, but IP Phone is allowed to
register.
Unknown IT_TYPE IP Phone has no display. The IP Phone just resets continuously.
IP Phone registration is not allowed.
Log message is sent to LTPS administrator.
Branch Office LTPS
determines IP Phone
requires firmware upgrade
IP Phone displays message that firmware download is initiated.
IP Phone is placed into local mode.
Message is displayed until firmware is downloaded. IP Phone’s
upgrade process is initiated.
If firmware download is unsuccessful after 10 retries, IP Phone
remains in local mode.
Table 19
IP Phone registration and download scenarios (Part 2 of 2)
Scenario Result