SMSC example - Successful Mobile to Mobile over SS7

A mobile user uses SS7 to send a short message. The core accept the message and it is successfully stored. The response is send to the originator. In the mean time a delivery attempt is started to a mobile recipient. The SS7 HLR is queried and the responsive is positive, meaning the HSS (SIP-domain) will not be queried. A delivery attempt is send to the receiving mobile which acknowledges the message. Currently no status reports are implemented in the Simple-SMSC model, but you will see that there are already many (millions) permutations. Use the choices on the right to make different diagrams or even different starting points (e.g. App, UCP, CIMD2, SMPP, UE, SIP, SS7 or CORE).

The generated MSG-Flow

UE-MO MOB-IW CORE STORE HLR UE-MT
| | | | | |
+-UE-uses-SS7
Info for UE-uses-SS7
No link information between act and comp for UE-uses-SS7
| | | | |
+-send-MO
Info for send-MO
No link information between act and comp for send-MO
| | | | |
|----MO-FSM
Info for MO-FSM
No link information between msg and prot for MO-FSM
--->| | | | |
| |----submit-sm
Info for submit-sm
No link information between msg and prot for submit-sm
src_protss7
---->| | | |
| | |-----store-sm
Info for store-sm
No link information between msg and prot for store-sm
src_protss7
----->| | |
| | | +-msg-stored
Info for msg-stored
No link information between act and comp for msg-stored
| |
| | |<---store-sm-resp
Info for store-sm-resp
No link information between msg and prot for store-sm-resp
resultok
src_protss7
--| | |
| |<--submit-sm-resp
Info for submit-sm-resp
No link information between msg and prot for submit-sm-resp
resultok
src_protss7
-| | | |
|<-MO-FSM(ACK)
Info for MO-FSM(ACK)
No link information between msg and prot for MO-FSM(ACK)
resultok
src_protss7
-| | | | |
+-MO-accepted
Info for MO-accepted
No link information between act and comp for MO-accepted
| | | | |
| |<----deliver-sm
Info for deliver-sm
No link information between msg and prot for deliver-sm
resultok
src_protss7
dst_prot*
---| | | |
| |-----------------------SRI-SM
Info for SRI-SM
No link information between msg and prot for SRI-SM
resultok
src_protss7
dst_protss7
---------------------->| |
| |<--------------------SRI-SM(ACK)
Info for SRI-SM(ACK)
No link information between msg and prot for SRI-SM(ACK)
resultok
src_protss7
dst_protss7
--------------------| |
| |-------------------------MT-FSM
Info for MT-FSM
No link information between msg and prot for MT-FSM
resultok
src_protss7
dst_protss7
------------------------->|
| | | | | +-MT-received
Info for MT-received
No link information between act and comp for MT-received
| |<-----------------------MT-FSM(ACK)
Info for MT-FSM(ACK)
No link information between msg and prot for MT-FSM(ACK)
resultok
src_protss7
dst_protss7
----------------------|
| |-deliver-sm-resp
Info for deliver-sm-resp
No link information between msg and prot for deliver-sm-resp
resultok
src_protss7
dst_protss7
->| | | |
| | +-msg-delivered
Info for msg-delivered
No link information between act and comp for msg-delivered
| | |
| | |-----delete-sm
Info for delete-sm
No link information between msg and prot for delete-sm
resultok
src_protss7
dst_protss7
---->| | |
| | | +-msg-deleted
Info for msg-deleted
No link information between act and comp for msg-deleted
| |
| | +-msg-stop-(re)try
Info for msg-stop-(re)try
action msg-stop-(re)tryIndication to stop retrying.
section Visible actions
component CORERepresents the core of the SMSC.
| | |

You can and paste the above flow representation in a text file or in your favourite text editor using a monospace font. Ofcourse you will loose the context sensitive output and the links towards additional information.

Decission table

The decission table shows which decissions have been made so far and which to make. The header contains the choice number and the entity making the choice. The choices are shown from left (latest) to right (earlier) which make it handier to follow or adapts. All choices you could have choisen on a specific level are displayed. You can click on the description to make a different choice.

SS7-flows : The mobile uses SS7 to send messages.
  #7
CORE		 #6
UE-MT		 #5
HLR		 #4
MOB-IW		 #3
CORE		 #2
STORE		 #1
CORE
1 msg-(re)try SS7-mt-ack ack RI-failed msg-deliver-app msg-ok submit-reject
2 msg-stop-(re)try SS7-mt-nack nack RI-to-HLR msg-deliver-mob msg-failed submit-store
3       RI-to-HSS msg-deliver-later    

Additional Generated Information

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