NGN
Next Generation Network (NGN) is a service
oriented network.
Through the separation of service and call
control, the service- independent architecture is
implemented,
which
makes
services
independent of switching network.
NGN provides integration of voice, data, fax, and
video services.
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NGN (Contd)
 In broad sense it refers to the next
generation integrated network that
adopts new technologies extensively,
focuses on IP, and provides voice,
data, and multimedia service at the
same time.
 In narrow sense it refers to the
open system structure that employs
soft switch at the control layer.
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NGN LAYER ARCHITECTURE
Service Management
Network Control
Core Switch
Edge Access
3
NGN Network Architecture
4
System capacity
Item
Specification
Maximum number of supported TDM trunks
360,000
Maximum number of supported gateways
2,000,000
Maximum capacity of supported black and white
lists
1,000,000
Maximum capacity of supported external prepaid
card numbers
1,000,000
POTS subscribers:
2,000,000
Maximum number of supported subscribers
V5 subscribers: 2,000,000
IPN subscribers: 200,000
IP consoles: 100,000
Maximum number of supported multimedia
terminals
SIP terminals: 2,000,000
H.323 terminals: 1,000,0005
C4 OFFICE (PRESENT CONFIGURATION)
SoftX3000
MTP
IP MAN/backbone
M3UA
SS7 signaling
network
MTP
H.248/
M2UA
SG7000
ISUP trunk
H.248/
M2UA
TMG8010/
UMG8900
Other C4 office
or toll office
TMG8010/
UMG8900
MTP
ISUP trunk
C5 office
ISUP trunk
C5 office
ISUP trunk
C5 office
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SOFT SWITCH (SOFTX 3000)




As a SoftSwitch product, SoftX3000 is located at the core
control layer of NGN scheme.
SoftX3000 acts as a generic Call Controller in the
packet-switched network, supports the interworking
between PSTN,H. 323, SIP, and MGCP domains.
SoftX3000 provides H. 248 and MGCP based bearer
control.
In the NGN solution of Huawei, SoftX3000 acts as the
core of NGN, interworking with other NGN components
through the open network adopting distributed standard
protocols.
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COMPLETE NETWORK LAYOUT
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PHYSICAL STRUCTURE OF SOFTX 3000
FE
Frame 0#
FE
To the billing center
FE
Standby iGWB
Frame 1#
LAN Switch in
plane 1
GE
LAN Switch in plane 0
To the billing center
Active iGWB
BAM
Frame 2#
Hub
Emergency WS
To the network
Management center
Frame 17#
WS
Host
Background
WS
WS
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LOGICAL STRUCTURE OF SOFTX 3000
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Burewala
GUjrat
Lahore
Sialkot
Bahawalpur
Sargodha
Faisalabad
Gujranwala
Sahiwal
Multan
TRUNKING DIAGRAM OF NGN
MRS
IAD
Packet Core Network
SG7000
Soft Switch
Islamabad
Abottabad
Mardan
Peshawar
Bannu
Jehlum
Karachi
Hyderabad
Sukkur
Quetta
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UMG E1 status at LX side
UMG
S.No
Total E1's (Installed H.W )
Planned E1's
Working E1 's
Pending E1's
Spare E1's
Status
1
Islamabad
308
290
205
85
28
connected & operational
2
Karachi
288
283
244
39
5
connected & operational
3
Abbotabad
64
26
18
8
38
connected & operational
4
Bahawalpur
96
84
28
56
12
connected & operational
5
Bannu
64
19
14
5
45
connected & operational
6
Burewala
64
29
29
0
35
connected but not tested
7
Faisalabad
160
120
110
10
40
connected & operational
8
Gujrat
64
54
19
35
10
connected & operational
9
Gujranwala
128
76
38
38
52
connected & operational
10
Hyderabad
64
64
52
12
0
connected & operational
11
Jehlum
64
16
16
0
48
connected & operational
12
Lahore
476
402
340
62
74
connected & operational
13
Mardan
64
28
28
0
36
connected & operational
14
Multan
128
101
79
22
27
connected & operational
15
Peshawar
128
124
100
24
4
connected & operational
16
Quetta
96
67
48
19
29
connected & operational
17
Sahiwal
64
41
25
16
23
connected & operational
18
Sialkot
64
58
46
12
6
connected but not tested
19
Sukkur
64
46
43
3
18
connected & operational
20
Sargodha
64
39
19
20
25
connected & operational
Total E1s
2512
1967
1501
466
555
connected & operational
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UMG 8900 Functionality Features
•
UMG8900 supports inter-working between different bearer networks and
provides conversion function between different traffic flow formats:
– UMG8900 can server as Trunk Gateway (TG);
– Act As Access Gateway (AG) in NGN network;
– Support Embedded Signaling Gateway (SG) function
simultaneously.
•
By networking with soft switching devices, UMG8900 can act as nextgeneration TDM switch adopting next-generation (NGN) architecture to
provide all services of PSTN and achieve smooth evolvement to NGN.
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UMG 89000 (Cont’d)
•
•
•
•
•
UMG8900 serves as TG or AG in NGN or as the traditional PSTN switch
and the next-generation switch.
In NGN, UMG8900 is applied in the gateway exchange and toll exchange
as large-capacity TG.
Through the combined networking with soft switching device , UMG8900
can provide next-generation TDM switch application.
MG8900 can act as tandem exchange / toll office / gateway exchange / C5
networking application of PSTN to implement the seamless evolution to
NGN.
Provides AG function of large capacity via RSP user frame of UMG8900
accesses user directly.
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PROTOCOL STACK OF SOFTX 3000
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Interface
Application
Protocols
Signaling
Transmission
Protocols
SoftX3000-SG
SIGTRAN
M3UA/M2UA/SCTP/IP
SoftX3000-TMG
H.248
UDP/IP、SCTP/IP、TCP/IP
SoftX3000-AMG
MGCP
UDP/IP
SoftX3000-IAD
MGCP、H.248
UDP/IP
SoftX3000-MRS
MGCP
UDP/IP
MGCP
UDP/IP
SIP
UDP/IP
H.323
UDP/IP、TCP/IP
SoftX3000-SoftSwitch
SIP
UDP/IP
SoftX3000-PSTN/ISDN
SS7
MTP
SoftX3000-SIP
SIP
UDP/IP
SoftX3000-H.323
H.323
UDP/IP、TCP/IP
SoftX3000-NMS
MML
-
SoftX3000-BC
FTP or FTAM
TCP/IP
SoftX3000-Terminal
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System processing capability
Item
Specification
BHCA of a single service
processing module
400k
BHCA of the system
16000k
Call drop rate
 0.01%
Calls between intra-domain
subscribers:  200 ms
Call setup time
Calls between both intra-domain
subscribers and out-domain
subscribers:  500 ms
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Services & Functions
SERVICES
•
•
•
•
•
Voice Services
IP Centrex Services
Multimedia Services
IPN Services
IN based Value Added Services
FUNCTIONS
•
•
•
•
•
Support for Multi-Country-Code and Multi-Area-Code Functions
Support for Multi-Signaling-Point-Code Function
Support for Dual-Homed Host Function
Support for Gateway Office Functions
Support for IP Supermarket Function
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MULTIMEDIA END OFFICE APPLICATIONS
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C5 OFFICE CONFIGURATION
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Achievements
• Implementation of On-line billing in all the exchanges of
Switching Zone Islamabad in ZTE B&CC project.
• Testing / Commissioning of NGN expansion phase.
• Testing / Commissioning of Signaling gateway at NGN
for IP PPC services through FIN (fix IN)
• Testing /Commissioning of MRS for the provision of IVRs
for IP PPC services through FIN (fix IN)
• Improvement of ASR in national directions by the
augmentation of long haul media after a detail traffic
analysis.
• Reduction of congestion point on local as well as nation
wide directions.
• Termination of .25 (M) IP calls per day on NGN platform.
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Ongoing Issues
• NGN status is currently under PAT
• PAT of Softx 3000, UMG 8900,SG 7000 & MRS
has
been
completed.
Discrepancy
list
comprising of Non Service affecting & some
deficient features has already been forwarded to
the vendor through Dig Dev wing.
• Connectivity with some UMG’s is still pending
due to Media/hardware unavailability at the far
end (LX side).
• Extension of NGN NMS room is required.
Several civil works need to be done.
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