JEEMA SMS stores all the recieved SMS messages in its inbox. The members can view their message in their inbox based on their keywords defined. If a SMS message doesnt match to any of the keyword then by default it will be stored to the administrator inbox.
JEEMA SMS recieves incoming messages only from your SMS gateway. It never receives the SMS message directly from the mobile user. So, the primary configuration is to check with your SMS gateway provider and make the necessary setup in the gateway to receive the SMS messages from the mobile user.
This is one of the nice feature that enables JEEMA SMS to allow public/registered members to choose a contact group and subscribe/unsubscribe.