Signalling
Arshey Odedra
ITU-T TSB Engineer: arshey.odedra@itu.int
International Telecommunication Union
[ITU-T Workshop Botswana 24-26 July – 2002]
SS7 Recs
Signalling System No. 7 (1980)
• Yellow Book (1980)
– Fascicle VI.6
• Message Transfer Part (MTP)
– Recommendations: Q.701-Q.725
• Data User Part (DUP)
2
Signalling System No. 7 (1984)
1/2
• Red Book (1984)
– Fascicle VI.7
• Message Transfer Part (MTP)
– Q.701-Q.709
• PABX Application
– Q.710
• Signalling Connection Control Part (SCCP):
– Q.711-Q.714
3
Signalling System No. 7 (1984)
2/2
• Red Book (1984)
– Fascicle VI.8
• Telephone User Part (TUP)
– Q.721-Q.725
• Integrated Services Digital Network User Part
(ISUP)
– Q.761-Q.766
• Monitoring and Measurements for the MTP
– Q.791
• Operations and Maintenance Application Part
(OMAP): Q.795
4
Signalling System No. 7 (1988)
1/3
• Blue Book (1988), Fascicle VI.7
• General
– Q.700
• Message Transfer Part (MTP)
– Q.701-Q.709
• Simplified MTP: Q.720
• Signalling Connection Control Part (SCCP)
– Q.711-Q.716
5
Signalling System No. 7 (1988)
2/3
•
•
•
•
•
Blue Book (1988), Fascicle VI.8
Telephone User Part (TUP): Q.721-Q.725
ISDN Supplementary Services: Q.730
Data User Part (DUP): Q.741
Integrated Services Digital Network User
Part (ISUP): Q.761-Q.766
6
Signalling System No. 7 (1988)
3/3
• Blue Book (1988), Fascicle VI.9
• Transaction Capability Application Part
(TCAP): Q.771-Q.775
• Test Specification: Q.780-Q.783
• Monitoring and Measurement Q.791
• Operations, Maintenance and
Administration Part (OMAP): Q.795
7
Signalling System No. 7 (1999)
1/3
• General: Q.700
• Message Transfer Part (MTP) Q.701-Q.710
• Signalling Connection Control Part (SCCP)
– Q.711- Q.716
• Telephone User Part (TUP): Q.721-Q.725
• ISDN Supplementary Services:
– Q.730-Q.737.1, 732.2(Rev),733.5(New)
8
Signalling System No. 7 (1999)
2/3
• Data User Part (DUP): Q.750-Q.756
• ISDN User Part (ISUP): Q.761-Q.768
• Transaction Capabilities Application Part (TCAP):
Q.771- Q.775
•
•
•
•
Test Specification: Q.780-Q.788
Q769.1 (NP)
Q.1601
Q.765Bis, Q.765.1Bis
9
Signalling System No. 7 (2000)
3/3
* More on SS7 (2000)
– Q765 (Rev - 06/2000)-Application transport
Mechanisms:
• Q.765.4
• Q765.5
10
Narrow-band ISDN, DSS 1
• Digital Subscriber Signalling System No.1
–
–
–
–
–
General : Q.850, Q.860 (06/00) GAT
Data link layer Q.920-Q.923
Network layer Q.930-Q.939
User-network management Q.940, Q.941
Stage 3 description for supplementary services
using DSS 1 Q.950-Q.957.1
11
Broadband ISDN, DSS 2 (1/2)
• General aspects: Q.2010
• Signalling ATM adaptation layer (SAAL)
– Q.2100-Q.2150.2
• Signalling network protocols: Q.2210
• Common aspects of B-ISDN application
protocols for access signalling and network
signalling and interworking
– Q.2610-Q.2660
12
Broadband ISDN, DSS 2 (2/2)
• B-ISDN application protocols for the
network signalling
– Q.2721.1 to Q.2769.1
• B-ISDN application protocols for access
signalling (includes DSS 2 aspects)
– Q.2931-Q.2971
• New(12/99) Q.2981-2984
• Testing Q.2931/2961&2/2971/2991-Series
13
Intelligent Network (IN)
•
•
•
•
•
Q.1200 – Q.1208
Q.1210 – Q.1219 IN-CS1
Q.1220 – Q.1229 IN-CS2
Q.1231 – Q.1238.7 IN-CS3
Q.1241,1244,1248.1.7 IN-CS-4
14
IN Capability Set 1 (CS-1)
• Services
– Services to be deployed over PSTN, ISDN and PLMNs.
– Included such services as:
• Call forwarding
• Credit card calling
• Freephone
• Malicious call identification
1993, Q.121X series of Recommendations
IN Capability Set 2 (CS-2)
• Services added: e.g.
–
–
–
–
–
–
Internetwork Freephone
Completion of call to busy subscriber
Conference calling
Call Hold, transfer and waiting
Message store and forward
International Telecommunication Charge Card
1997, Q.122X series of Recommendations
IN Capability Set 3 (CS-3)
• Contents e.g.
– Number portability
– Support for B-ISDN
– Initial interworking of IN and IP networks
1999, Q.123X series of Recommendations
IN Capability Set 3 (CS-3)
• Services e.g.
–
–
–
–
–
Carrier selection handling
IN Calling Line presentation restriction
Inter-Network Service indicator
Triggering on Call Failure Condition
Etc.
1999, Q.123X series of Recommendations
IN Capability Set 4 (CS-4)
• Contents e.g
– Multiple points of control
– Enhanced Number Portability
– Inter-working with the services in Internet Protocol (IP)
Networks
2001, Q.124X series of Recommendations
IN Capability Set 4 (CS-4)
• Services e.g.
–
–
–
–
Operator determined barring
User defined barring
Call forwarding unconditional
Call forwarding on busy, no reply and not
reachable
– Closed user group, Advise of charge
– Calling name identification presentation
– Etc.
2001, Q.124X series of Recommendations
Signalling Convergence towards
Packet based Networks
- Intelligent Network
- Bearer Independent Call Control (BICC)
protocols – Q.19xx Series
GENEVA
THANK YOU
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