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ATA191MPP locked

louprovencal
Level 1
Level 1

Hi, problem with a locked ATA191 we bought new (??) on Amazon. We cannot access it using admin-admin but only cisco-cisco. it look like that line 1 is already registered to a voip provider (strange for a brand new ATA). we can try differents factory reset with success, but after a few minutes the ATA is locked again and register with that unknow voip provider.

Anybody knows how to unlock that ATA for good so we can use it on FreePhoneLine

Thanks

Louis 

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