run_kannel_box: 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 Debian possible default full paths are:

/usr/sbin/run_kannel_box - from package: kannel

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

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