Norstar 616 software upgrade

[shaneric]

I have a Norstar 616 system (dr1 or dr2, I am not sure how to tell). I purchased a Flash voicemail system to add on, but it needs to be dr5 software with Disconnect Supervision recommended.

My question is can a dr1 or dr2 system be upgraded to dr5 with DS?

Thanks for your help
shaneric

 

[shaneric]

I found the answer here

http://www.tek-tips.com/viewthread.cfm?qid=1477625

 

[Bob3470]

DS KSUs had a different colour label almost a teal blue green colour that said DS on it. A KSU without DS had just a plain grey label inside. A DR1 does not have transfer and set relocation cant be turned off.