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Check this link below. It give you more clear example to setup hardware conference bridge in CME.
http://www.ipbalance.com/voip/voip-cucme/1448-cme-how-to-setup-hardware-conference-bridge-meetme-and-ad-hoc.html
Check below article to complete hardware conference bridge in CME
http://www.ipbalance.com/voip/voip-cucme/1448-cme-how-to-setup-hardware-conference-bridge-meetme-and-ad-hoc.html
I hope it is informative for you.
Thank you for the comments.Do you know the way to upgrade ATA190 thru CUCME?I found a way with CUCM, but not CUCME.Currently, we are replacing ATA186 with ATA190.Seems like setting will be a lot different from ATA186(IOS gateway setting, SIP proxy).C...