I have a location with a V3000 on R5.0.12 (I know it's old...but our contract has been expired for some time). They recently moved & have setup a new phone number with a new TelCo. It appears that a user has recently noticed that they are not recieving all of their voicemails from outside callers since clients have been complaining about non-returned calls. We did some testing & noticed that the lines weren't clearing right away after a call was terminated & have a ticket in with the TelCo to enable disconnect supervision.

Could there be any other reasons for voicemails not being delivered? Or should the disconnect supervision resolve this issue?

Also, I believe that I may have a newer release available that was previously downloaded for another V3000 at one of our other offices. Could I apply this to this box? Or is there a license that needs to be purchased?

Thanks in advanced for the help!