Is there a way to send SMS messages to multiple contacts or numbers? I have a potential customer that needs to send mass SMS notifications to employees.
Hello @FireMedic, the 3CX SMS feature is not designed with Bulk SMS in mind. It is meant as a P2P SMS Messaging solution.
A2P is what you want from the sound of it. You should look in the documentation of your SMS Provider to see how you can achieve that programmatically, outside of 3CX.