Hi All
i have been told by my service provider that the 877 adsl router has issues with some of their exchanges and for best compatability i should upgrade to the latest version of firmware.
ADSL firmware of 4.0.18
i have read on the internet that the firmware for the adsl modem is now incoporated within the Cisco IOS. Therefore i will have to upgrade my ios. what i would like to know is what the different release letters mean and can my router run those ios's aslong as it has the required memory.
my current ios is
c870-advipservicesk9-mz.124-24.T5.bin
and im looking to upgrade to
c870-advipservicesk9-mz.150-1.XA5.bin
What is the difference between a T and XA
