ESME_RINVSYSTYP in SMPP

What is ESME_RINVSYSTYP?

ESME_RINVSYSTYP (Error Code: 0x00000053) is an SMPP error indicating that the system_type provided in the bind_transmitter, bind_receiver, or bind_transceiver PDU is invalid or not recognized by the SMSC.

Possible Causes

  • The system_type field contains an incorrect or unsupported value.
  • The SMSC does not recognize the specified system_type.
  • The ESME is attempting to bind with an invalid or empty system_type.

When Does It Happen?

This error occurs when an ESME sends a bind_transmitter, bind_receiver, or bind_transceiver request with an invalid system_type value.

Example SMPP PDU Transaction

Incorrect bind_transmitter PDU (Invalid System Type)

0000001B (Length)
00000002 (Command ID for bind_transmitter)
00000000 (Command Status)
00000001 (Sequence Number)
74657374 00 (System ID: "test")
70617373 00 (Password: "pass")
696E7661 6C6964 00 (Invalid System Type: "invalid")
34 (Interface Version: 3.4)
00 (Address TON)
00 (Address NPI)
00 (Address Range)

Response PDU (bind_transmitter_resp) with ESME_RINVSYSTYP

00000010 (Length)
80000002 (Command ID for bind_transmitter_resp)
00000053 (Command Status - ESME_RINVSYSTYP)
00000001 (Sequence Number)

Issue: The system_type field contains an invalid value ("invalid"), which is not recognized by the SMSC.

How to Solve It?

  • Use a valid system_type as per the SMSC configuration.
  • Some SMSCs require a specific system_type, while others may allow an empty value.
  • Confirm with the SMSC provider what values are accepted for system_type.
  • Ensure that the bind request is correctly formatted before sending.

If the issue persists, check the SMPP logs, correct the PDU values, and consult the SMSC provider for further troubleshooting.

More information