<https://dev.octopush.com/en/sms-gateway-api-documentation/vb-sms-api-source-code/#primaryimage>
<http://schema.org/caption>
"Télécharger le code source de l’API SMS VB"
<https://dev.octopush.com/en/sms-gateway-api-documentation/vb-sms-api-source-code/>