Hi @dan_ce, I’m not sure if downgrading your dpma version will be helpful, especially if you’re planning to upgrade it after. It sounds like the discussion in the linked post was talking about downgrading the firmware on the phones, as oposed to DPMA. What version are you currently running? You can find out with this command: yum info asterisk16-res_digium_phone
Are you sure you’re running the latest? In other words, does ‘yum update asterisk16-res_digium_phone’ show anything available? If you’re using the digium_phones module(not Endpoint Manager), I believe there were some visual voicemail related fixes in the latest 3.6.3 version of dpma that were introduced in a prior version.