Programmable routing vs black box SMS APIs: what developers are missing
python
dev.to
You send an SMS. It gets delivered. Or it doesn’t. You don’t know why. Most SMS APIs are black boxes. You make a request. They decide everything else. which route is used which vendor handles it how traffic is classified why delivery changes why filtering happens You don’t see it. You can’t control it. The problem SMS delivery is not a single system. It is a layered network of: aggregators carriers routing layers filtering systems traffic classification r