SMSC example - Core retries to Mobile, first SS7 than SIP

The core starts a delivery attempt towards a mobile. First SS7 is attempted but the HLR (SS7 domain) gives a negative response. Then the HSS (SIP domain) is tried, which answers with a positive reponse. The delivery attempt is done over SIP and the mobile accepts the message. Mainly positive choices are made, which makes the msg-flow easier. 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

CORE STORE MOB-IW HLR HSS UE-MT
| | | | | |
+-msg-(re)try
Info for msg-(re)try
No link information between act and comp for msg-(re)try
| | | | |
|----retrieve-sm
Info for retrieve-sm
No link information between msg and prot for retrieve-sm
--->| | | | |
| +-msg-retrieved
Info for msg-retrieved
No link information between act and comp for msg-retrieved
| | | |
|<-retrieve-sm-resp
Info for retrieve-sm-resp
No link information between msg and prot for retrieve-sm-resp
resultok
-| | | | |
|-------------deliver-sm
Info for deliver-sm
No link information between msg and prot for deliver-sm
resultok
dst_prot*
------------>| | | |
| | |------SRI-SM
Info for SRI-SM
No link information between msg and prot for SRI-SM
resultok
dst_protss7
----->| | |
| | |<---SRI-SM(NACK)
Info for SRI-SM(NACK)
No link information between msg and prot for SRI-SM(NACK)
resultok
dst_protss7
--| | |
| | |----------UDR
Info for UDR
No link information between msg and prot for UDR
resultok
dst_protsip
--------->| |
| | |<-------UDA(ACK)
Info for UDA(ACK)
No link information between msg and prot for UDA(ACK)
resultok
dst_protsip
-------| |
| | |------MESSAGE+RP-DATA
Info for MESSAGE+RP-DATA
No link information between msg and prot for MESSAGE+RP-DATA
resultok
dst_protsip
------>|
| | | | | +-MT-received
Info for MT-received
No link information between act and comp for MT-received
| | |<----------200(OK)
Info for 200(OK)
No link information between msg and prot for 200(OK)
resultok
dst_protsip
----------|
|<----------deliver-sm-resp
Info for deliver-sm-resp
No link information between msg and prot for deliver-sm-resp
resultok
dst_protsip
----------| | | |
+-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
dst_protsip
---->| | | | |
| +-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.
| | | | |

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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.

CORE-flows : The core starts a delivery.
  #8
CORE		 #7
UE-MT		 #6
HSS		 #5
MOB-IW		 #4
HLR		 #3
MOB-IW		 #2
CORE		 #1
CORE
1 msg-(re)try SIP-mt-ack ack RI-failed ack RI-failed msg-deliver-app msg-(re)try
2 msg-stop-(re)try SIP-mt-nack nack RI-to-HSS nack RI-to-HLR msg-deliver-mob msg-stop-(re)try
3           RI-to-HSS msg-deliver-later  

Additional Generated Information

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