I'm running Cisco CallManager System version: 18.104.22.168900-8 on our envirment and we are in the process of deplying a Cisco 8811 phone.
Step i took
Install Device Pack
Reset TFTP services
configure the cisco 8811 ph however
getting error message
Telephone service is unavaliable
No trust list installed
Is option 150 configured on your dhcp scope with the tftp server ip address?
If the deivce pack was installed to add the 8811 phones as a device type, a reboot of the call managers are required.
If the device pack was only upgrading firmware, no reboot is required.
Device pack should be installed on all servers, then do a cluster reboot.
Optin 150 is correct cauz i see the correct TFTP server ip address on Alternat TFTP server
however i didn't install Device pack on all servers only on the pub and only restart TFTP services
we need to install device pack on server
and restart the cluster ?
[+5] to cehill.
you upload the Device Pack 8.6(2)(26157-1) and same can be downloaded from below link
This would upgrade the firmware for all other models deployed.