What is the approximate SMS delivery rate?

The approximate delivery rate is 98,7%. The issue with failed SMS messages is mainly from a telecom operator’s end or recipient’s. On our part, we make sure to detect any faults and not allow them to be sent to the network. The Dashboard will notify you of the faults. If the recipient number is wrong, we exclude the number, however, if the recipient number passes the system check, we won’t know, if it’s truly valid or not, so the system will submit the number to the network for delivery, hence you will be charged, because the messages will be sent to the network for delivery. If a message fails to be delivered, we retry to send the message for the second time for free.

Some of the common reasons that a message fails on a recipient’s part are:

  • phone is out of signal
  • phone is switched off
  • recipient has account issue
  • recipient inbox is full
  • recipient number is roaming
  • carrier is blocking the SMS
  • local restrictions prohibit delivery
  • recipient number may be in “ Do Not Disturb” list
  • carrier is experiencing technical difficulty