1. SSTP
Kamalasanan

2. SSTP in BSNL SSP MSC MSC SSP SSP TAX TAX SCP MSC MSC SSP SSP
Advantages:
Optimizes traffic capacity
Full mated pair redundancy
Dedicated signaling resources
Upgrade path divorced from MSC / SSP functions, growth
Most effective for wireless
Centralized network level resources, features, POI
A vantage point into the entire network
Signaling Solution set:
HLR Consolidation
SMS Routing
SMS Screening
Fraud Control and accounting
MNP
Many others..
HLR
TAX
TAX
SMSC
SCP
HLR
VMS
HLR
HLR
HLR
MSC
MSC
SSP
SSP

3. SSTP Network Connect all SS7 network elements
Provides centralized routing of SS7 messages
Performs Global Title of MAP & IN messages
Utilizes SS7oIP connectivity to transport messages
High capacity STP
L1/L2 TAX/GMSC
L1/L2 TAX/GMSC
L1/L2 TAX/MSC
L1/L2 TAX/MSC
L1/L2 TAX/GMSC
SSTPs
Soft switch
BSNL
IP-MPLS Network
L1/L2 TAX/GMSC
L1/L2 TAX/GMSC
L1/L2 TAX/GMSC
L1/L2 TAX/GMSC
L1/L2 TAX/MSC
L1/L2 TAX/GMSC
Soft switch

4. Eagle Frames & Shelves E A G L E S T P EXPANSION Supports 2800 LinksTM
Control
Control
Extension
Control
Shelf
Extension
Frame
Supports 2800 Links
Frame
Frame
Frame
Control
Shelf*
Control
Shelf
Extension
Shelf
Extension
Shelf*
Extension
Shelf
Extension
Shelf
Extension
Shelf
Extension
Shelf
Extension
Shelf

5. Salient Features
Completely distributed Architecture, no centralized MTP3 routing
All routing tables and dynamic route status stored in individual cards
Physical Interfaces
E1/T1, Ethernet, ATM
Multi-Protocol Support
M3UA, M2PA, SUA, ANSI, ITU
Easily integratable in a multi-vendor environment
Inter-op with most vendor SSPs & SCPs
Hot swappable hardware
Minimum card reload & system restart times
STP functions in-spite of failure of the Central processing cards

6. MTP features`
Multiple PC Support ( upto 40 point codes, ITU-N,ITU-I & ANSI)
Load sharing on 2 link sets
Alternate route creation ( 6 routes in a route-set)
Assuming PCs of other nodes for ease of migration
Support of congestion management procedures
Support for different network indicators (ITU-N, ITU-NS)
Interoperability between different networks (ITU-N, ITU-I)
Gateway Screening
Multiple linkset to adjacent point code; enabling to overcome the restriction of only 16 links to a single point code

7. SCCP features Support Global Title Translation and its variants
variable – 10 different lengths
enhanced – GT selection based on NP,NAI,TT,GTI
modified –CdPa modification
SCCP loadsharing for upto 32 destinations
Transaction based loadsharing for in-sequence GT routing
ITU & ANSI SCCP Conversion
Support for 96 capability point codes
SCCP Class0 & Class1 routing
Weighted GTT Loadsharing

8. Mobile Number Portability Solution

9. Mobile Number Portability Highlights
Mobile Number Portability (MNP) is implemented by all the service providers in India
National Signaling Network (SSTP network) will act as Local Number Portability Database (LPDB) accordingly LPDB has been procured and installed as part of SSTP network at all 24 locations.
As per guidelines of DoT all call query method is to be adopted with Direct Routing
To achieve this, all the elements, that carry SS7 traffic and involve in call set up, will have to be connected to the SSTP network, directly for routing control.
The connectivity of the zonal nodes continue to be with the SSTP directly and all the traffic to and fro between MSCs and IN/SMSC etc. is routed by the SSTPs as already existing.
Currently deployed Circle level STPs should work as the aggregators to consolidate all the traffic in the respective circle and send it towards the SSTP network to provide the NPDB dip and response to the queries.

10. Mobile Number Portability Highlights
Contd…2
-2-
3.1 Connectivity with Mobile and CDMA network.
The detailed instructions has already issued by NOW-GSM branch vide MOB-45/MNP-2010 dated available in intranet portal.
3.2 Connectivity with PSTN network.
The connectivity with PSTN network has been explained in detail by this office letter no /2008-(PHM) IN dated To use IAM query method, New technology local exchanges or SDCC Tandems will be called (designated switch for MNP) in each SSA. These may be directly connected with SSTP network and rest of the exchanges may be connected to these exchanges for signaling purpose in non-associated mode. The connectivity with all Level-1 and Level-2 exchanges is already exists with SSTP network.
3.3 Connectivity with ILD Operators and Foreign carriers.
All type of ILD signaling traffic like IR MAP, SMS ,ISUP already flowing through BSNL SSTP network. For this connectivity with ILDOs/FCs with their Signaling gateways (SSTP or STP) has established with BSNLs signaling gateways SSTPs. Any international call coming to BSNL network will be taken care by Level-1 TAXs and necessary dip in LPDB(SSTP) will be done to know the status 0f mobile subscriber and accordingly call/messege will be routed to concerned operator.
4. DOT has fixed the date for installation and commission of operators network by ,hence it is desired the necessary connectivity for commissioning of the network be established latest by The number of links and distribution among SSTPs , for this connectivity may be decided as per anticipated traffic.
5. M/s ITI and M/s Tekelec are interacting with SSTP in charge on regular basis. It is requested that required details be given for configuration in SSTPs.
6. You are requested to get the necessary coordination established among concerned GM (Mobile Operations) , GM (Operation/CFA) ,GM(Mtce.) of Regions and M/s ITI to implement the above connectivity plan.
(Bhupendra Kaushik)
AGM(NM)
Copy to: GM (NWP-GSM)/GM(NWO-Mobile)/PGM(CDMA Planning)/PGM(Regulation) BSNL Corporate office New Delhi.
Registered & Corporate office: Bharat Sanchar Bhawan,H.C.M. Lane ,Janpath, New Delhi
Network Operations, Corporate Office,
810, Bharat Sanchar Bhawan,
Janpath, New Delhi
Tel. No , FAX
No. 6-38/2008-NM Dated: 01/01/2010
To,
CGMs Maintenance Regions ETR, NTR, STR WTR
CGM BNW, New Delhi.
Sub: Media Connectivity between MPLS backbone of BSNL and MCHA platforms for implementation of Mobile Number Portability.
Kindly refer to N/w Opn –CM letter no. MoB – 45 / MNP – 2009 dated regarding Installation and commissioning of MNP Gateway in Chandigarh and Kolkata for implementation of MNP in BSNL network. Copy of letter on Intranet website of BSNL.
2. A 2 Mbps (One E1) Connectivity is to be established between MPLS nodes at respective stations to the MCHA platform at the addresses given below via redundant path.
Main MCHA platform of MCHA - I at TCS Syneverse Rack, 3rd Floor, Tata Communications Bldg ( adj. To TCIL Building) GK I at Delhi.
DR platform of MCHA - I at TCS Syneverse Rack, 2nd Floor, Tata Comminications Bldg ( adj. MTNL Xchg.) Bandra Kurla Complex, at Mumbai.
Main platform of MCHA-II at Tata Communications DC,#18-19&20, Ist Floor, EPIP Layout, KIADB, Whitefield, Bangalore.
DR of MCHA - II at Tata communications DC , 1/18 CIT scheme, 4TH Floor, Ultadanga, Kolkotta.
3. Similarly connectivity is required between MPLS nodes to the MNP gateways to be installed at Chandigarh and Kolkata CMTS nodal centers.
4. In view of above, CGM of Maintenance regions are requested to arrange of 2 MBPS end links for above via redundant paths. You are also authorized to hire the bandwidth wherever BSNL bandwidth is not available in respective place of jurisdiction. The work of provisioning of Bandwidth is to be completed by
5. CGM BNW is requested to arrange the necessary ports and configuration for the above locations as per the diagram in letter referred above.
(D.K.Agrawal)
DGM(NWO-III)
Copy to: 1. CGM Punjab And West Bengal for information and necessary action please.
2. GM(NWO-Mobile) BSNL Corporate office New Delhi In respect of their referred letter.
Mobile Number Portability Highlights
Connectivity with Mobile and CDMA network.
Connectivity with PSTN network.
To use IAM query method, New technology local exchanges or SDCC Tandems will be called (designated switch for MNP) in each SSA. These may be directly connected with SSTP network and rest of the exchanges may be connected to these exchanges for signaling purpose in non-associated mode. The connectivity with all Level-1 and Level-2 exchanges is already exists with SSTP network.
 Connectivity with ILD Operators and Foreign carriers.
All type of ILD signaling traffic like IR MAP, SMS ,ISUP already flowing through BSNL SSTP network.
Any international call coming to BSNL network will be taken care by Level-1 TAXs and necessary dip in LPDB(SSTP) will be done to know the status of mobile subscriber and accordingly call/messege will be routed to concerned operator.

11. BSNL NPDB Connectivity
MCHA
MCHA
LUCKNOW
BHOPAL
EPAP A
EPAP B
NPDB
EPAP A
EPAP B
NPDB
NAGPUR
AHMDABAD
RAJKOT
COIMBATOR
ENTRAKULUM
CHENNAI
HYDRABAD
EPAP A
EPAP B
NPDB
NPDB
NPDB
AGRA
Public WAN
JAMMU
SHIMLA
NPG North
NPG South
AMBALA
BSNL IP MPLS
JAIPUR
KOLKATTA
DELHI
BANGLORE
EPAP A
EPAP B
NPDB
EPAP A
EPAP B
NPDB
PATNA
JALANDHAR
MUMBAI
EPAP A
EPAP B
NPDB
EPAP A
EPAP B
NPDB
NPDB
CUTTAK
Provisional Sites
GHUWAHATI
SHILLONG
DIMAPUR
11 | Tekelec. For What's Next.

12. MNP Operator setup MCHA SOA SOA LSMS LSMS LSMS LSMS
Service Order Administration (SOA) System updates MCHA
Local Service Management System used to received pushed updates from NPAC’s CRDB
Regulator defines MCHA Specification
CRDB
PUBLIC
WAN
LSMS
LSMS
Operators’
Provisioning
Systems
Operators’
Provisioning
Systems
SOA
SOA
LSMS
LSMS
LSMS
Cluster
LSMS
Cluster
Operator’s
WAN
Operator’s
WAN
SSTP
NPDB
Operator A
Operator B

13. Non-Integrated NP Solution
NP Solution Options
SSTP’s Integrated NP Solution
Non-Integrated NP Solution
SSP
EAGLE
NPDB
SRF
STP
STP
SRF*
NPDB
SSP
NPDB
SSP
Integrated STP, NPDB, and SRF functions
Simple growth – additional cards hot-plugged into existing frame/system
Centralized data maintenance
Lesser links
Multi-platform deployment, additional PCs
Growth may require new nodes
Related data must be maintained in multiple network entities
More points of failure

14. STP with integrated database functions
Other SSTP pairs
NP Portability
Status Exchange
with OLOs
e.g. via central
Database
(LSMS)
Intelligent
Network
Layer
Data
Provisioning
System
HLR
SCP
VMSC
Signalling &
Network Intelligence
Layer
BSC
STP
Subscriber
Other
Networks
MSC
SSP
MSC
Base Station
Subscriber

15. Example SSTP SCP SMSC OTA/ Other Aggregation of the traffic Circle -3
NPDB
Circle -3
SMSC
OTA/
Other
SSTP
Aggregation of the traffic

16. SSTP requirements for MNP
Connectivity
Zonal Network elements SMSC, IN are connected to the SSTP
All CDMA MAP network elements are connected to SSTP.
All PSTN traffic connected to SSTP via Level-1/Level-2 TAX
Network Architecture
Each SSTP will have NPDB for the routing purposes
SSTP architecture to be modified for efficient call routing
Call Flows
SSTP is capable of handling different variations of call flows and requirements from the protocol perspective
Query method and parameters to finalized with the vendors, based on their capabilities and network flexibility

17. connectivity network MSC1 HLR IN MSC2 MPLS cloud MSC3 STP SSTP SSTP
SMSC
MSC5

18. Overall Representative Architecture
L1/L2 TAX/GMSC
L1/L2 TAX/GMSC
L1/L2 TAX/MSC
L1/L2 TAX/MSC
L1/L2 TAX/GMSC
Signaling
Gateway
Soft switch
L1/L2 TAX/MSC
BSNL
IP-MPLS Network
All Inter STP Connectivity is on
Sigtran
L1/L2 TAX/GMSC
Soft switch
L1/L2 TAX/GMSC
L1/L2 TAX/GMSC
L1/L2 TAX/GMSC
L1/L2 TAX/GMSC
L1/L2 TAX/MSC
L1/L2 TAX/GMSC
Soft switch

19. National Signaling Network Architecture (Existing)
Tax
Tax
Ericsson
STP
2- North Zone
1- West Zone
SCP
MSC
SMSC
SSTP
MSC
3- East Zone
GMSC
Tax
Tax
SCP
SMSC
BSNL
IP/MPLS Network
SSTP
SMSC
SCP
Ericsson
STP
All the Links are a Mix of LSL/HSL or IP
Only a single element is shown for clarity though there are many elements
Only Single linkset is shown from each element but there will be two for the mated pair.
STP is the Sgw/STP installed by the CMTS
SSTP
MSC
Tekelec
STP
MSC
GMSC
Tax
Tax
MSC
MSC
MSC
GMSC
SSTP
SMSC
SCP
Nortel/
Siemens
STP
Tax
Tax
MSC
MSC
MSC
4- South Zone

20. Thank You!!