I have a MICS DR 6.1 that I want to upgrade to XC. I checked on the Nortel web site and I see where it looks like you can Upgrade from DR 6.1 to DR 7.1 by just swapping the feature cartridge and not even have to use the upgrade tool. I cant find where you can updrade from DR 6.1 to XC 7.1. Anybody done this or know where the Doc's are for this proceedure? I am assuming that there is an upgrade proceedure where the programming can be retained.
Thanks,
Thanks,