I don't understand how an attempted call would show up at all on phone records, let alone a 50-second attempt show up on phone records, if the phone was out of service. (That's what we mean by restricted, right?)
Then, it seems odd to me that someone would try to access voice mail three hours later if they already found out the phone was out of service/restricted.
IMO, that phone had service.
We have to remember, even DB said she was transferring numbers between the phones that night. Why so much activity on a phone/phones that couldn't be used?