Can I send SMS messages for free when I purchase a license of Auron Omni?

No, SMS messages are not free. Auron does not offer commercial SMS messaging services. Auron only offers the software.

If you want to use GSM, you need a GSM modem and a SIM card. You can buy a SIM card from any telecom operator. Pricing depends on the type of operator and the SMS volume. Find a list of recommended GSM modems here.

If you want to use SMPP, you need to subscribe to an SMPP service provider. There are many SMPP providers all over the world. Pricing depends on the type of operator and the SMS volume. Most SMPP providers also offer HTTP-Post services. Find a list of recommended SMPP and HTTP providers here.