Programming instructions

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Software Procedures
3. Ensure that the TFTP server pointed to by option 128 corresponds to
a server (possibly an upgraded ICP) that contains the new IP Phone
software loads.
4. On the DHCP server(s), create a global scope corresponding to option
60 or option 124 (as selected above). Repeat for each sub-scope (if
any).
5. On DHCP server(s) define option 43 or option 125 (as selected above)
for each newly created scope. See the 3300 System Administration
Tool Help for information on formatting the required option strings.
6. After the upgraded controllers are returned to service, and all IP
Phones have re-homed to them, use the LOAD IP 1-700 maintenance
command to force a firmware reload of all devices.
7. Delete old options 128-133 on all DCHP servers.
Distributing New Software to IP Phones
Use this procedure for IP Phone software distribution after you upgrade
any controller in a resilient cluster.
1. Update all TFTPs in the scope of the upgraded controller’s cluster.
2. Wait for all IP devices to return to their primary ICP (now upgraded).
3. Use the LOAD IP 1-700 maintenance command to force a firmware
reload of all devices.
Clearing the Browser Cache
To clear the browser cache in your administration PC:
1. Launch Internet Explorer.
2. Click Internet Options in the Tools drop-down list.
3. Click Clear History and then click Yes.
4. Click Delete Files, check Delete all offline content, and click OK.
Note: The values used in the option 43 string must correspond
exactly to previous option 128-133 values.