SMPP PDU Operation Definitions
The following SMPP PDU Operation Definitions are taken from the SMPP 3.4 specification.
-
bind_*_resp
– Where ‘*
’ is replaced byreceiver, transmitter
ortransciever
depending upon circumstances. The SMPP bind_*_resp PDU is used to reply to a bind request of the specified type. -
deliver_sm
– The deliver_sm is issued by the SMSC to send a message to an ESME. Using this command, the SMSC may route a short message to the ESME for delivery. -
enquire_link
– This message can be sent by either the ESME or SMSC and is used to provide a confidence check of the communication path between an ESME and an SMSC. -
submit_sm
– This operation is used by an ESME to submit a short message to the SMSC for onward transmission to a specified short message entity (SME). -
unbind_resp
– The SMPP unbind_resp PDU is used to reply to an unbind request. It comprises the SMPP message header only.