Updating phone firmware to callmanager
Both interfaces are Gigabit Ethernet, connected via each router’s internal bus.The ISM-SRE-300-K9 module is configured with its own IP address and acts as a separate machine inside the router.
The only notable difference in the Call Manager Express configuration will be the module’s interface that connects to Call Manager Express.
The phone will then wipe the flash and load whatever firmware is specified in the tftpd32 directory – if the phone just keeps downloading the term.defaults file constantly, just do an incremental upgrade to the firmware version that you want).
This will clear all settings on the phone and set it to defaults.
If you have any questions, feel free to send me a message on my contact page, if you get really stuck I can also provide these services remotely.
Mentioned in Part-1 of our Cisco Unity Express installation article, the Cisco Unity Express setup procedure is identical for ISM-SRE-300-K9 and SM-SRE-700-K9 modules.