Two months before Cisco call manager was crash then we resotre the call manager.
In ccm page its shows the current firmware was "SCCP11.9-1-1SR1S" Then I upload the SCCP11.9-2-1SR2S this version on cluster but 70% phones are no updating.
I restart the CCM service as well as the TFTP services but still same, Then I upated one more higher version but its same not updating.
When we are doing ip phone on factory default then its updating. So I want to know that why most of the phones are not updating via CCM.
The running CCM version is:8.5.1.10000-26.
