vbsim: 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/lib/voxbo/bin/vbsim - from package: voxbo

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

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