Budget: 15000 UAH Deadline: 10 days
can be done. The number of sendings depends on the speed of your servers and the API aggregators through which you send... I understand that you have a base with the phones, and you need to make a sending on them. We can consider options and see how to maximum productivity.
I can implement it on Python + Django. It requires detailed TZ, especially information about which aggregators or gates you want to make the shipping. If through the aggregator, then there is usually a package shipping. If through their doors, they need data about them.
