Short Message Peer-to-Peer, messaging solution for mobile device

1. SMPP SMSC Communication Protocol Nuruddin Ashr [email_address]

4. SMS (Short Message Service) Message exchange between mobile stations SMSC Message for B Message for B Message for A Message for A Mobile station A Mobile station B

5. SMS (Short Message Service) Message exchange between ESME and mobile stations SMSC Other Entity Mobile Stations Messages Messages Protocol?

9. SMSC Protocol Why use SMPP...?

10. SMPP: introduction The Short Message Peer to Peer (SMPP) protocol is an open, industry standard protocol designed to provide a flexible data communications interface for transfer of short message data between a Message Center .

14. Protocol Overview SMSC Other Entity Mobile Stations Messages Messages Protocol? SMSC ESME SME Messages Messages SMPP

16. Protocol Overview: SMPP Short Message Peer to Peer (SMPP) protocol is an open message-transfer protocol that enables short message entities ( SME s) outside the mobile network to interface with an SMSC . Non-mobile entities that submit messages to, or receive messages from an SMSC are known as External Short Message Entities ( ESME s).

17. Protocol Overview SMSC ESME SME Messages Messages SMPP Mobile Network TCP/IP or X.25 network connection

19. Protocol Overview Every SMPP operation consist of a request and associated response (but some have exception). ESME SMSC Request Response

21. Protocol Overview SMSC ESME ESME ESME Transmitter Transceiver Receiever

23. SMPP Session: transmitter (TX) ESME SMSC Network connection bind_transmitter bind_transmitter_resp Send short messages

24. SMPP Session: receiver (RX) ESME SMSC Network connection bind_receiver bind_receiver_resp Receive short messages

25. SMPP Session: transceiver (TRX) ESME SMSC Network connection bind_transceiver bind_transceiver_resp Send and receive short messages

26. SMPP Session Question: How if SMSC want to send messages but there is no valid SMPP session? Use outbind operation

27. SMPP Session The purpose of the outbind operation is to allow the SMSC signal an ESME to originate a bind_receiver request to the SMSC.

28. SMPP Session: using outbind ESME SMSC Network connection outbind bind_receiver Receive short messages bind_receiver_resp

35. SMPP PDU: optional parameter

36. Typical Session Sequence: TX Synchronous Asynchronous Response - request pair indicated by same sequence number

37. Typical Session Sequence: RX

38. Typical Session Sequence: TRX