Hi, I have configured the ATA just like a new phone and when I connect it nothing happens. seems like its not getting anything from the tftp? red lights blinking? Is there another step that Im missing that must be configured? Pls advise, any suggestions pls. ccm 4.2.3 es44.
The protocols that you can use depends on yours call agent. If you have CallManager it is better to use SCCP. You can find packet containing all the information to upgrade cisco ATA. Filename is something like ata_03_02_01_sccp_050429_a.zip. There is detailed instruction in the archive how to upgrade (sata186us.txt).