auphone: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/auphone - from package: nas

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/auphone - from package: nas-bin

You may install the required package with command apt-get install {package}

Error in other languages:
auphone: bevel nie gevind nie
auphone: comandă negăsită
auphone: comando não encontrado
auphone: commande introuvable
auphone: command not found
auphone: käsku ei ole
auphone: không tìm thấy lệnh
auphone: komanda nerasta
auphone: Kommando nicht gefunden.
auphone: kommandot finns inte
auphone: komut yok
auphone: nie znaleziono polecenia
auphone: níor aimsíodh an t-ordú
auphone: no se encontró la orden
auphone: no s'ha trobat l'ordre
auphone: opdracht niet gevonden
auphone: parancs nem található
auphone: perintah tidak ditemukan
auphone: príkaz nenájdený
auphone: příkaz nenalezen
auphone: команда не найдена
auphone: командата не е открита
auphone: 命令找不到
auphone: コマンドが見つかりません