Jitbit is a great help desk app for small and medium sized companies. It has all the features you may need to make your services more efficient. The app is available in both versions, SaaS and on-premise.
No limitations on where you want to send messages. D7's global coverage and direct connections with high-quality routes ensure that the messages are reliably and quickly delivered to the mobile handset. We support messaging in your regional language. You just have to set the data_coding parameter to Unicode or auto for non-GSM characters. You can trigger SMS based on your requirements, whether it's for customer support or marketing campaigns, alerts, notifications, invites, or reminders. D7 has a number of plans that will suit your requirements.
D7SMS Integrations