Cisco ATA 190 and CUCM

Today I had a fight with an ATA 190. After I powered the critter up it autoregistered itself with the CUCM 8.6 but after that it failed to register; it stayed "rejected".

Probably it has something to do with this bug.

The ATA did not load the newer firmware from the CUCM and did not use the downloaded config file.

Not wanting to wait on TAC to resolve this and getting some hints that a manual upgrade would solve this problem I started to focus getting the firmware .bin-file.

(use at your own risk!)

Step 1 - Download the latest firmware from Cisco

Step 2 - Download HxD and 7Zip

Step 3 - Read this link

Step 4 - Open cmterm-ata190.1-1-2-005.cop.sgn in HxD and remove the certificate

Step 5 - Save the file (.gz !)

Step 6 - Unzip the .gz file with 7Zip

Step 7 - Open ATA190.1-1-2-005.bin.sgn and remove the certificate

Step 8 - Save the file (.bin !)

Step 9 - Open webinterface of the ATA 190, login (admin/admin) 

Step 10 - Go to Administration -> Upgrade and load the .bin file

If the ATA has the first available firmware it takes a while and will result in a "Upgrade Failed". Ignore this because it just works.

It seems the ATA still needs some help after this because after adding the TFTP address manually in the config of the ATA and a reboot the ATA registered correctly and worked like a charm.