What a phone number tells you before you send an SMS

If you send an SMS to a landline it disappears. No bounce, no error you can act on, and you are still billed for it. The same goes for a disconnected number and for plenty of VoIP numbers. The fix is to find out what a number actually is before you send to it. Here is what a phone number can tell you, and what it cannot. Start by normalizing to... Weiterlesen: What a phone number tells you before you send an SMS