This message indicates that the product code featured on the back of the JamVOX monitor was already registered to another JamVOX-Online account. We do request that the deregistration of a JamVOX-Online account featuring the respective product code be done directly by the previous owner/seller, preferably before the change in ownership (as also indicated in FAQs 37 & 38). A user may deregister his or her JamVOX-Online account in the [settings] pages after logging into their JamVOX-Online account.
It is shown in the sticker on the lower right back side of your JamVOX Monitor.
If purchased via www.jamvox-online.com , the code will have been provided to you in the e-mail confirming your purchase.