If the d70 is EOL and EOS is it likely there is still a warranty on them? Is there any way to tell, on the phone label, if it is still under warranty? Do I have to contact digium and is that support that would cost?
Based on the Warranty Policy  and the End of Sale and Life announcement , the warranty on the product has likely expired. We’ve continued to release firmware updates, the most recent is from the 9th of May, 2018, but we’re not under any general obligation to do so.