We are guessing that you are asking about the OTM Manager 3 when you are asking about release 3.0.8. The OTM product has not be in use for a number of years so we don't have the software available in the Avaya support portal. Instead, the new DMC DECT Manager is used for the same purpose. There's a little write-up about it in the product bulletin: http://downloads.avaya.com/css/P8/documents/100156391
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