Why do multipart messages receive DLRs with extra latency?

Question

  • Why are my long SMS taking a long time to arrive?
  • Why are concatenated message sometimes slow to deliver?
  • Why are my delivery receipts for a long SMS message different from each other?

Answer

Each part of a concatenated message might take up to 10 seconds to be processed by handset, and all parts of a multipart or long SMS need to have arrived before they can be reassembled by the handset. Hence handset delivery notifications for different parts of a multipart message might be delayed between each other, even though the messages are displayed at the same time on the handset.

 

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