In the Upgradeing the Cisco ATA Signaling Image documentation it gives me two
Upgrading the Signaling Image from a TFTP Server
Upgrading the Signaling Image Manually
I have been following the Manual process. I have downloaded different versions of the SIP image. I have run the command ata186us ......zup
I have run the command 100# ip_address......
But keep getting the message "Upgrade Failed"
Can anyone give me any ideas or help???