Delivery occurs a few seconds after submission (under normal conditions & nbsp;  between 2 and 10 seconds).  

In the event that the target mobile or device is not present available (due to lack of coverage, battery, etc.) the SMS message will remain in Sent state and the operator will retry delivery within the next 72 hours. After this period the message will be discarded and will appear in Expired state.

LabsMobile is in charge of selecting those connection routes to all telephone operators to maximize the delivery rate and minimize the delivery period.

At the time of delivery the operator will notify the delivery confirmation that will appear in the History section of the account. Also you can consult at any time the different updated statuses of any message (Status of an SMS message).

Through the API it is possible to receive in real-time any change in the status of a sent message (API JSON Receive message status).