vbri: 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/vbri - from package: voxbo

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