1. Where is Intelligence in the GSM network?
Normal GSM subscriber
Makes and receives a call.
MSC
ISUP
HLR
GSM network (PLMN)
MAP

2. Where is IN in the GSM network?
GSM operator wants to
provide new services quickly & efficiently in the network and that is possible only through IN.
CSS7 Signaling link between SSP and SCP provides the communication channel between IN and
GSM network.
IN environment
SPACE
SCP
HLR
MAP
MSC
MAP
SSP
SSP
MSC
MSC
ISUP
GSM network (PLMN)

3. Intelligent Network Concept

4. Intelligent Network Logic

5. Intelligent Network Elements
alarm
UMTS
SSP
GSM
NetAct
ISG & OSG
ISCP
Node
Ext. SRP
DRS
SS7-network
SPACE
Workstation
MOC
MOC Server
AppServer
Intranet
SII

6. Service Switching Point (SSP)

7. Service Control Point (SCP)

8. Customized Applications for Mobile-network Enhanced Logic (CAMEL)

9. Trigger for IN Services