Features Page 111 of 910
IP Line Description, Installation and Maintenance

System view

IP Phone firmware upgrades
Each IP Phone registering with the LTPS is queried for its firmware ID and
IT_TYPE. The system response depends on the results of the query. See
Table 16.
Firmware file management
To manage available firmware, the following information is collected about
each firmware file on the Signaling Server/Voice Gateway Media Card:
• firmware ID
• firmware version
• applicable IT_TYPE (see Table 17)
• applicable model names
Table 16
System response
Query result Response
LTPS software supports the reported
IT_TYPE (see Table 17 on page 112), and the
Upgrade Manager has firmware for the given
firmware ID.
Registration of the IP Phone continues. The
IP Phone firmware upgrade is performed if
possible.
LTPS software supports the reported
IT_TYPE, but the Upgrade Manager has no
firmware for the given firmware ID.
Registration of the IP Phone continues with no
firmware download.
LTPS software does not support the IT_TYPE
reported.
Registration of the IP Phone is rejected.
The branch office IP Phone is upgraded at the
branch office before the IP Phone is
redirected to the main office.
If the branch office does not have the
necessary firmware file, an attempt is made to
download the firmware file from the main
office.