Why do multipart messages receive DLRs with extra latency? Why do multipart messages receive DLRs with extra latency?

Why do multipart messages receive DLRs with extra latency?

Nexmo Support

Question

Why are concatenated message sometimes slow to deliver?

Applies To

  • Delivery Receipts
  • Concatenated SMS

Answer

Each part of a concatenated message might take up to 10 seconds to be processed by the 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.