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ATA 186 registering with CUCM 9.x

Just in case this helps somebody else keep their remaining hair intact...

Migrating an ATA 186 to CUCM 9.x requires the ATA to be running firmware ATA030204SCCP090202A

I've just spent a few hectic hours trying to work out why I couldn't migrate some ATAs from an old 4.x cluster to a shiny 9.x one. The ATAs were running version ATA030203SCCP051201A on the old cluster. ATA would get its config file from 9.x once I updated DHCP option 150, but then immediately registered with the old cluster.

As soon as I upgraded the ATAs to the new version, all worked properly. I'm assuming there's something in the XML file servered by 9.x that the old firmware doesn't understand...

Barry Hesk
Intrinsic Network Solutions

2 REPLIES

Re: ATA 186 registering with CUCM 9.x

Very good tip Barry! +5P

Carlo

Sent from Cisco Technical Support iPhone App

Please rate all helpful posts "The more you help the more you learn"

Re: ATA 186 registering with CUCM 9.x

Hi Barry,

thanks for this post. I think you save my time, because I have migration this weekend from version 4.2 to 9.1

regards

Anas

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