astribank_allow: command not found

Have You tried accessing the binary with the full path?

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 Debian possible default full paths are:

/usr/sbin/astribank_allow - from package: dahdi

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