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

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